A 14 year old Vocaloid (a robot that sings and dances all electronically). He has yellow hair and dies periodically. It is actually a running gag that he dies in every music video.

His twin is Rin kagamine. They were both made from the same program, just set at different pitches.
Girl: Len Kagamine is soo cute!
Guy: But he dies every other day
Girl: he will live on in my heart
Guy: What about me?
by Xiaojia December 28, 2011
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A Japanese Vocaloid created by Crypton Future Media that is an absolute god who also dies on occasion.
“Wow, we don't deserve Kagamine Len's Cuteness!!!”
Len!! Stop dying!!”
by Whyiseverypseudonymtaken June 17, 2020
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