Dear Sa-chan, if only I'd had sex with you that time, perhaps I wouldn't have wandered down this disastrous path. A story of true love and its downfall, brought to life by an unconventional protege.

Cast:Ren Ishikawa, Keito Kimura, Hinano Nakayama, Dori Sakurada,

Genre:Drama,

country:Japan,

Production:AOI Pro., TBS,