[[Original]] character created by [[Yoshida On]]. As a result of an accident, she is [[amputee|amputated]] at the left leg, and has [[one-eyed|lost her right eye]].

Bikko was originally the subject of Yoshida's one-shot doujin Kesson Shoujo (欠損少女) in 2004, in addition to a dozen other doujins since 2010.
ビっ子さん