Len had yet to be revealed at the time of the road roller meme. Before her release, Rin had the road roller assigned to her by accident in a video that suddenly received many views on December 1, 2007. In the end, Len's item was a banana because his hair was commented to resemble a bunch of them, while Rin's item was an orange since her bow gave the impression of orange leaves. KEI was not given any further direction as he had already drawn the art for Miku, the first release in the Character Vocal Series.Ĭontinuing the tradition of the Item War Internet Meme, many items were proposed for the pair. KEI was given a concept by Crypton that included Rin and Len's approximate ages as well as the idea of them being 'mirror images' and, like Hatsune Miku, androids. Their codename 'CV02' means 'Character Voice 02'. This refers to an ' echo', which is a sound being bounced back to the user from a different direction caused by soundwaves hitting a surface at a direction that reflects it back the way it came. Their surname was derived from the developing code combining Kagami (鏡, mirror) and Ne (音, sound). She later confirmed in an interview after the Append release that the names were based on Ken and Rin from Hokuto no Ken, derived from a discussion about names that were familiar from her childhood.

Their given names of Rin and Len were said to be based on ' right' and ' left' according to Asami Shimoda. When the Kagamines were being recorded in 2007, their names were not yet decided. Wat also said that the Append boxart makes the pair seem like twins, due to the foetal position they were in. Wat) described them as two bodies with one soul. During their Append's production, Wataru Sasaki (aka. Crypton's final announcement was that the Kagamines were neither siblings nor lovers. Crypton stated that they approved of the many different interpretations of Rin and Len's relationship that they saw in different works. Ĭrypton originally had the intention of distributing them as twins, but this was not adopted. The first idea was for two voices of a girl and an identical male of the opposite gender, just like twins. The development of the Kagamines began when Crypton formulated the concept of making a pair of female and male voicebanks.

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