|Other Names||The One Who Steals|
|First Appearance||Don't Leave Me Alone.|
|Last Appearance||In Your Eyes.|
|Subtitle Color||Light blue (Part 1); Yellow (Part 2-4)|
Red (Original programming)
- "I want to become strong"
Kagamine Len is a Vocaloid, or "vocalized android" living in Japan in the present day era. Len was programmed to have a past life as a dog under the care of the child-soldier Irina in Russia. After being shot, the dog's self was uploaded into Kagamine Len and, forgetting his memories, he lived a relatively normal life with his fellow Vocaloids Rin and Miku, crushing on Miku as an idol. Accidentally regaining his memories again, he also gives Rin back her memories as Irina and brings himself, as well as everyone else, into a mess of complications.
In the Russia EraEdit
- "I wasn't even human orz"
There was originally a stray dog adopted by Irina, who grew to love his master over time. On one occasion, she gave the dog to her comrade to take care of him while she worked as a soldier for Putin. Anxious to see his master, he broke loose and stole her comrade's yellow scarf as he ran to Irina's side. The boy followed the dog, along with all the other children that worked as child soldiers, and shot the animal dead in front of Irina.
Afterwards the Russian officer Elena recreated the dog in a spam file that was uploaded to the internet, giving the data file sentience, in order to show the world the government's exploitation of children. At some point, the data file was broadcasted as a virus; due to the Irina data file inside Kagamine Rin wishing to have her "dog" again, he discovered the Kagamine Len android model and, liking its identical appearance to the Kagamine Rin android, was uploaded inside.
- "Yo! Everyone, it's been a while! Pickpocketing's still my hobby."
Wishing to begin a new life as a Vocaloid, Len and Kagamine Rin were released to a producer and managed to separate from the viruses associated with them, having their programming wiped. At some point during this, Len's memories of his "past life" were removed and placed in a disk for safekeeping, leaving Len an innocent individual unaware of the details of his past although still aware of it. He also took up a hobby of pickpocketing from people. Over time, he also learned about the Vocaloid idol Hatsune Miku and developed a crush on her, often making this crush plain to an irritated Rin. Len would, meanwhile, be repeatedly called by Rin and refused to answer the phone, complaining that it was too tiresome to do so.
At some point, unable to obtain Miku and uninterested in Rin, Len entered into a relationship with the yaoi manga character Abe-san. After trying and failing to forget Miku, he became depressed and began purchasing and smoking weed from Ronald. Later on, as Valentine's Day arrived, Len was approached by Rin with a small box in her hands containing a piece of chocolate she'd made for him.
As Len was urged to eat, he heard her say that it was made with gunpowder and hesitated. Threatened by a red Rin to eat or she would chop him up, call Putin, and arrest him, Len ate the chocolate. As a result, he malfunctioned and saw hallucinations of Ronald and Abe. After malfunctioning Len forgot his distaste for Rin and decided to give up trying to get Miku's attention; he also understood that he would need to get a backup disk to repair his malfunction.Some time afterward, Len received a phone call from Rin and listened as she asked him to meet her by the cherry trees. Len excitedly agreed and made the date, intending to woo her after having given up on Hatsune Miku. When he arrived, he saw Rin dressed in a grey Russian outfit and standing with a red shovel under the falling cherry blossoms, the supposedly dead Ronald McDonald nearby. He then helped her bury Ronald and avoided the police.
After following Rin back to her house, Len was taken in by her and given an "initiation ceremony" as she planned to teach him survival skills. He then bore it as the more violent Vocaloid brushed his teeth for him, slashed at him with a knife, and kicked him repeatedly as part of this instruction. When Rin asked Len to go buy sugared natto for her to eat, he obediently left to go buy it. At some point during this, Len stole what he thought was Rin's bag and found a backup disk inside; hoping to restore himself from earlier, he inserted the disk and began to slowly get his memories back. He also decided to smoke weed during this time.
Not too long after, Len was arrested by the authorities and imprisoned along with Rin. After being processed and tried under juvenile laws, the two were released and were scolded before being allowed to go. The two later walked together from Shibuya Station. As they walked, Len made clear his continued interest in Miku and was threatened by Rin. At some point afterward, the two began attending Miku's Junior High school.
- "Even so, I have one last wish: I want to meet the old you"
After inserting his disk, Len had realized that the disk actually contained all the memories of his past life in Russia, and that the bag he'd stolen actually belonged to their uploader. Realizing he was the dog and not Rin's former comrade, he also became horrified to see his role in Irina's suicide and began to blame himself. Despite this, he continued to attend school regularly with Miku and Rin. At some point, Ronald got close to Len and pretended to befriend him. After school one day, Len took notice of Miku and, flustered, stared at the idol until the impatient Rin dragged him home.
One day, Len was told by Rin to meet her behind the school after class for an important talk and arrived late. When he greeted the girl, he listened as Rin threatened him for being late and then asked him what he thought of her efforts to become an idol. Seeing her acting like Miku, even to the point of pulling her hair into pigtails, Len responded that it was bad. After leaving the scene, Len procured and smoked weed from Ronald and had a tryst with Abe-san to forget his troubles.
Lying drugged afterward, he decried Rin's attempts to abandon herself for him when he had also "changed". He also bemoaned his role in Irina's suicide and how they couldn't be together, repeating that it was all his fault as he slipped into a dream-like stupor. At some point during this, Ronald tricked Len into wishing to give Rin back her memories.
Over time as they attended school, Len watched Rin become more successful and happy in her new life, even being nominated for school council, while he continued his relationship with Abe. Some time later, Abe told him one on occasion that they wouldn't be able to meet and Len, depressed, went to Suidoubashi's betting station to bet on horses at the racetrack. While there, he listened to Hatsune Miku's song on the radio. and that he had the means to give Rin back her old memories too. Although knowing it was selfish, he decided to give Rin her memories back and mulled over smoking his weed before running to find her. Catching her in Tokyo Dome City, Len pulled her into a hug and, in the process, inserted the disk into Rin's headphones.
Immediately after, Len heard Rin tell him to take his hands away and he complied. Standing back from her, Len watched in astonishment as she remarked on liking the moment as memories returned. Becoming indecisive, he looked away and worried over what he had done by giving her memories back, realizing he had been deceived by Ronald. Becoming distant from Rin even as she held her hand out to him, he insulted himself and bemoaned that he couldn't be satisfied by just living. In the next moment, Len was startled out of his dark mood by Rin, up close to him, asking him what he was saying.
As she tried to get Len to look at her again, he continued to look away until hearing Rin call his eyes garbage. Angered, he looked back and heard her remark that his eyes could still shine. As she again enticed him to take her hand, Len finally joined his hand with Rin's and looked in her eyes. The two then shared a romantic date in Tokyo Dome City Attractions together before going home.
- "Since I've tired of looking at the dream I'll desperately protect the now"
An indeterminate amount of time later, Len noticed that Miku had gone missing and decided to look for her; eventually he found her holed up in her room watching the TV. Sitting down to watch with her, the two watched Rin sing Assassin!, broadcasted on live television. Afterwards the other Vocaloid heard Miku despairing over herself in the wake of Rin's success and claiming she was nothing; determined to reassure her, Len pointed out that he was here, a fan of hers, and that back in Russia both he and Rin had enjoyed her songs. Although admitting he didn't understand this world, he stated that since he was here he would cheer her up.
Len then offered for them both to drink sake and tell Habu stories to cheer her up. Afterwards, however, Len listened as Miku rebuked his offer and told him to leave. At some point after Rin called Miku's house, Len went out and got dressed in a Santa suit based on Rin's song. Wandering around the snowy Tokyo, he visited the marketplace and bought a raw mackerel pike to eat before heading to meet up with Rin.Arriving at the scene, however, Len saw a tall dark figure shooting at Rin and he raced to save her. Kicking the gun out of his grasp, he then told Rin to run and said that he didn't need any help. Left with the figure, Len watched him kneeling on the ground and mused that he didn't have a chance to show off now. Questioning if it was possible to seduce the figure, he then decided he had to escape at the first opening. Taking out his pike, he prepared to face the man, Camui Gackpo, as he also stood and pulled out a sword. He heard the android monologue about a past where he had lost his heart and was given over to drugs.
At the end of the speech, Len remarked the monologue was creepy and, seeing his chance, attacked Camui with a Misawa-style elbow thrust. As he got close, however, he saw Camui's red eyes for the first time and was startled, throwing his pike at the android. Camui, realizing Len was the dog, made another attack and Len dodged it, striking him again with his elbow and knocking the android unconscious. Following this, he stole Camui's wallet as a trophy of his success and fled, reflecting on all that was happening around him. When opening up the wallet, he found a red scarf within.
Afterwards, Len returned to his dorm and changed out of the Santa costume; during that time, he saw several layers of Rin's clothing scattered about the entryway. He received a Skype instant message from Miku asking where he was and excitedly messaged back if it really was her; given no reply from the diva, he more seriously answered that he was in his dorm. Asked where Rin was, Len explained how her clothes, sans underwear, were here while Rin wasn't and questioned why Miku had asked.
As Miku called him an idiot and messaged cryptically about Rin being "separated", Len asked her what she was talking about and only learned Miku planned to go to Suidoubashi. He messaged back that, although he didn't understand, he would go meet her if she was there. Told to hurry up and not interfere, Len put on another hooded jacket, with his new red scarf, and went out into the growing winter storm.As he ran to Suidoubashi, Len spotted Rin out in her Vocaloid outfit in the snow. Running towards her, he was stopped when Miku shot a USB into his headphones from behind; as his programming was affected, the Vocaloid fell motionless into the snow. He then began to see the story of Elena and Urusei Teppannov from his headphones, ending in the former's suicide after she rebelled against Putin and the latter's own defection from being an assassin. During this time, Miku dragged his body back to her house along with Rin's.
Afterwards, Len came to in Miku's home while his consciousness was within a manufactured world. As Miku insulted the uploader he asked her if Rin was alright, hearing her reply that she wasn't but had gained a bit more time. As Miku moved on to ask him what he thought of the story he just witnessed, Len replied uncertainly that he just felt nostalgic seeing it. He then, as Miku tried to explain that they were in a manufactured world, blew her off by citing he already understood that.
In a fast stream, Miku then began speaking cryptically about how the memories Rin had of being "Irina" were created by the woman in the story based on her own observations, and how Rin's dreams were her previous owner's small rebellion. Becoming confused, he requested she speak a bit clearer for him and the listeners and was told it was better that they didn't quite understand. After being asked if he knew what happened based on what he witnessed, Len admitted he didn't understand it either, only recounting how he'd felt like the dog when seeing the scarf but knowing his appearance was the same as the boy who shot him.Miku explained to the other Vocaloid that his appearance was a result of what Rin chose in her heart, and the boy wondered aloud that she wished for him. He stammered as he listened to Miku muse on the irony of Rin wanting to be with the pure him, while he would soon be alone after having gained intelligence. He then heard Miku remark that the story of the children and the dog was being propagated all over and making certain others concerned; remembering the story she showed him, Len questioned that her former owner had tried to stop its propagation. As she waved it off, he listened to her speak and explain that Rin, in order to stay, had the uploader erase her memories--even if poorly--and realized aloud that if he hadn't given Rin her memories back, she could have remained with him forever.
Miku confirmed this realization and added that his being a dog had made him unpredictable. Asking if everything was his fault, he heard Miku brush it off and muse about how Rin would be destroyed soon, but that she didn't have any influence in the artificial world so that only Rin could deal with it. He questioned if it was just Rin and was told it was the the true form of "the world's most pure machine gun".
Moving on, Len questioned if he could save her and was told that he couldn't, Miku shooting him the USB only so he would able to show Rin a final happiness. As the former idol then told him that she, himself, and Camui would all be linked when she pulled the trigger, he asked if he was going inside of Rin. Once it was confirmed the boy balked, protesting he didn't want to be destroyed or see Rin be destroyed inside her interior. As Miku quoted Rin and told him his eyes were like garbage, Len fell silent.
In response to Miku's encouragement to act more like his reckless dog self, Len said he got it and would go, continuing that he would show Rin happiness one more time as his "happy end". The Vocaloid then wondered what Rin's happy end was, only for Miku to say that no one would know but she herself. Hearing they were out of time, Len told Miku that she had changed and, briefly, had seemed more like the Hatsune Miku he listened to in Russia. Also noting her cute hairstyle, Len joked that Ronald would be pleased with it. As Miku bid him farewell, Len entered Rin's interior with his resolution decided.
- "Farewell, Irina"
Now inside the data world, Len received a new coat similar to the one Irina's comrade wore. He then resolved to start searching until he found Rin. As he did so, he thought about how scared he was to be responsible for Rin running out of time as a Vocaloid, and thought sadly about his past fixation with his old dog "past life". Spotting Rin in the distance, he ran towards the girl before being fired at by Camui, the figure suddenly appearing while the bullet missed Len.
As the assassin taunted him for pointlessly being there, Len said that he wasn't a dog and snapped that maybe Camui was, before explaining that he would fight because it was Rin's wish. He listened to Camui call himself and Irina pathetic as he explained their past lives; dismissing his statements, Len told him to shut up and mused that Camui also needed what he was going to give Rin, adding that even a dog would need it. Accepting that he wouldn't be able to change Rin's fate, he nonetheless decided to give her a final happiness by defeating Camui.
Reaching this conclusion, Len ran at Camui and attempted to wrestle him, before being quickly overwhelmed by the other Vocaloid; as Camui began trying to break him with his body, Len reflected on all the things that had once misguided him in the past. Saying farewell to "Irina", Len threw Camui off with the Atomic Suplex Hold and smashed him against the ground, defeating his nemesis once and for all. As he saw Rin's self disappear in front of his eyes, Len's android body began crying outside the data world.
Awakening back into the real world, Len stood and saw Rin sitting up on the floor, staring blankly with her personality vanished. Looking over to Miku, he saw the idol still "asleep" and realized that he was all alone. He then took the blank slate Rin out of Miku's house and walked with her to Shibuya station, Sugamo station, the racetrack, Studio Alta, Suidoubashi Station, and then continued going through Tokyo Dome City. As the blank Rin stopped and stared at him, he looked at her without any expression and then continued walking behind.
Thinking of how she would never return to the old Rin, Len stopped and stared ahead, reflecting on all that had happened. Gradually becoming agonized by the situation, Len bent forward and started crying over the loss of Rin and Miku, muttering that the only one left was the dog with his tail between his legs. As Len then thought about how much Rin meant to him, he looked back up and began to walk again.
Realizing he wanted to be strong like Rin's ideal, Len began running to catch up with the blank Rin and raced even faster to meet up with her. Finally catching the Vocaloid near the Tokyo Dome, he pulled her into a hug and then in the next moment felt her arms around him in turn. Len trembled and then hugged her closer, beginning to blush, and quickly said that he loved her.
- "Because you carry a heart that can't be controlled."
After being uploaded as a Vocaloid, Len originally acted as a noncomittal and fickle teen; although friends with Rin, he preferred to chase after the more glamorous Hatsune Miku and even got into a relationship with an older man when unable to win her heart. Even as he grew to love Rin, Len continued to be a fan of the other Vocaloid and would be shy when approached by her. Additionally, rather than face his problems he would use weed to forget about them and deny when he was unhappy.Compounding this personality was Len's inability to stand up for himself when bullied or attacked by Rin; he also had insecurities that were exacerbated by regaining his memories as the dog that helped cause Irina's suicide. As a result, he was often self deprecating and worried about everything being his fault, in the past and present. Despite this and his own self-deprecation, Len would nonetheless react to any insults directed at him with offense, shaping up as a response.
As a carry-over from his mischievous dog programming, Len was also a delinquent and often acted on his own interests without thinking of the consequences. As part of this he would pickpocket and steal as a hobby, and stole Rin's bag without any compunctions in order to find his backup disk. Later on he continued stealing, taking Camui's wallet following their first confrontation. He would also regularly skip Junior High, take illegal drugs like weed, gamble, and do other felonious activities while speaking in casual slang, such as saying "yo," to emphasize his irresponsibility.
Over time, as his relationship with Rin developed Len began to act more maturely and take responsibility for himself. He also began working to protect the people he cared for, rather than just showing off, and as an example was unafraid facing Camui in order to give Rin a "happy ending". As part of this maturity, after Irina disappeared in the data world and the Rin he knew was lost forever, Len was able to move on from his grief and resolved to be a stronger person from that point on, receiving closure with her blank self.
Skills and AbilitiesEdit
- "That's not the Cobra Twist, but the Atomic Suplex Hold is a cool technique, mew"
- ―Rin on Len's wrestling style[src]
Being a Vocaloid, Len was stronger and able to take more abuse than the average person; similarly, he was skilled at wrestling and able to defeat the much larger Camui on two separate occasions, despite the latter being better armed. As noted by Rin, Len had a distinct wrestling style apart from hers and made particular use of the Atomic Suplex Hold technique. This skill at fighting also extended to being able to dispatch an opponent with a high-kick if taking them by surprise, and making use of unconventional weapons like a pike fish. He was also incredibly fast, running being a trait he retained from his dog programming.
As a Vocaloid, Len was an extremely capable electronic singer and had the potential to be a popular idol; he also had an amount of sex appeal and was capable of seducing multiple men. Despite his other abilities, however, Len was sometimes slow-witted and was, by his own admission, unable to understand many things about the world and his situation with Rin. Due to this he would sometimes gravely misread a situation and act inappropriately or fail to pick up on cues from other people. Making up for these shortcomings he was tenacious and, when properly encouraged, would never give up.
- "I remember my appearance is the spitting image of the person I saw back then"
- ―Len on his model's appearance[src]
Due to the circumstances of his becoming a Vocaloid, Len looked almost identical to Rin in terms of height, color, and facial structure. He had bright blue eyes, pale clean skin, and blond hair tied back in a ponytail with messy, spiky bangs. As typical for a Vocaloid, Len had a white headset attached to his head that had yellow lights, into which a USB drive or disk could be inserted to change or update his programming.Originally Len wore his typical Act 1 Vocaloid costume with a white short-sleeved shirt and yellow tie with detached black sleeves, black shorts, white shoes, and black legwarmers. Rather than the front of his short sporting an F-clef, however, as in Crypton's official design, Len's shirt front has Rin's G-clef in black. During school hours or when skipping school, Len would wear his school uniform of a white dress shirt, a yellow tie, yellow and white sneakers, and yellow plaid slacks. In cold weather, he would wear a thick auburn winter jacket over the uniform.
On one occasion Len dressed up in a Santa outfit, complete with a big bag, but neglected to put on his beard. Going out to meet with Miku later, Len put on heavy blue pants and a grey winter coat with a hood and the letter N on the bottom, as well as the red scarf he received in his first battle with Camui. He would continue to wear this outfit for the rest of the series, save for in the data world where he took on the appearance of Irina's former comrade.
- "You really are cute. But you know, not that you weren't before!"
Len's fellow Vocaloid and friend. Len had a special connection to Rin from the beginning due to his programmed past life as Irina's dog, becoming a Vocaloid with her because of the strength of their connection. With his memories gone, he instead labored under the assumption that they had both fought together in Russia and believed this was the basis of their connection. Despite this, Len initially found Rin's attempts to get his affection tiresome and preferred pursuing the more popular and well-mannered Hatsune Miku.After the incident where Rin gave him chocolate and he gave up on Miku, Len began to show interest in Rin as a second romantic option, despite her regular physical abuse and verbal threats towards him whenever he slipped up. He would continue to have this romantic view of her even with his relationships with Abe-san or his desired relationship with Miku. Similarly, despite liking Miku he would prefer Rin when she acted like herself and didn't imitate anyone else.
After receiving his memories again, Len's relationship with her became complicated by his love for her as a dog and the guilt that accompanied his memory of her suicide. Because of this they began to grow distant and he missed the old Rin, Irina, that he knew as a dog. Trying to base their relationship on his old love for Irina, Len nonetheless had trouble saying he loved her and was unable to form the deep connection with her he craved. He eventually realized that he would have to let the past go and became resolved to send Rin off with a smile in the data world, finally being able to express his feelings for her although missing her terribly when she was gone.
- "Hatsune Miku who bewitches me with things like I've never seen"
A fellow Vocaloid. While also enjoying Hatsune Miku's songs from his past life, Len as a Vocaloid came to have a strong crush on the popular and well-mannered Miku due to her beauty and talent as an idol, finding her a more unobtainable and exciting love interest than Rin. Len's unrequited crush on Miku led to him experiencing much depression as he was unable to win her heart, trying to pretend he'd gotten over her by playing around with the likes of Rin and Abe-san. Despite this, he continued having an interest in the idol, although over time this interest developed into a sort of casual friendship with her.
As a result of their growing friendship, Len did his best to not only receive Miku's affection but to also cheer her up when she was depressed over Ronald, accepting that she loved the clown over him. He also came to understand that Miku had a far greater understanding of the events that had occurred in Russia over his own and felt at times that he was simply being lead around by her. After meeting with her a final time before finding Rin, Len was able to finally understand the insecurities and sad past that had made Miku as depressed as she was; as a result, after the events in the data world, Len began to miss Miku as he was left alone but wondered if she had finally achieved her own form of validation.
- "I'm not a dog. Maybe that's you."
Len's nemesis. From before Len was a Vocaloid, he had held a special disliking for Camui's "past self", as both the one who shot the dog and the one partially responsible for Irina's suicide. In the Vocaloid era, before knowing his true identity and their origins as data files, Len opposed Camui because of his targeting of Rin. During their fight he quickly found him a scary individual that he was originally too frightened to fight for long. Not understanding everything that the android was saying, he merely thought that his monologues about the past were creepy.
In their second encounter Len's resolve allowed him to face Camui without fear, instead defiant in the face of his taunting. By the end, Len could understand the android's feelings on his "past life" but refused to bow to his pessimistic attitude. While thinking that the too-far-gone Camui also needed to have been given the happiness that Rin was given, Len nonetheless fought him for Rin's sake and gave him no more consideration once out of the data world.
- "Now I'm engrossed with a young man"
Len's lover. At some point Len entered into a relationship with the older man as a means of taking his mind off Miku, continuing to date him during the times he tried to get Miku or Rin's affections. When depressed over his true nature after receiving his memories back, he would also use Abe-san to take his mind off everything, only to get even more depressed later when the older man wasn't able to meet with him. After starting up his romance with Rin after their date in the amusement park, Len appeared to stop seeing Abe-san.
- "Let's escape from this base producer"
Len and Rin's producer. Len had a low opinion of his producer; he, like Rin, found him "base", likely due to his failure to make either Rin or himself popular as Vocaloids. Due to this, he paid little mind to the producer and eventually just wished to escape from him with Rin.
- In January 2010, Len won third place in the "Favorite Putin-P Series character" poll held on Putin-P's blog.
- Len is the only main character in the series who has never held a gun.