Timid Yaya is the victim of every bully in school, but she has a secret kept even from herself: She has another personality named Nana, who is all too willing to kick butt.
While nice-guy guitarist Moriyama begins a tentative romance with Yaya, the constant appearances of brash Nana reveal the truth about his would-be girlfriend. And soon Moriyama's charismatic professional-musician friend Shohei takes too much of an interest in Nana's killer singing voice... and body!
Can Nana resist the very man Yaya has idealized all her life?!
Story and art by Satomi Ikezawa.