Newcomer exclusive to a certain famous idol group at a live venue, found a beautiful gem-like girl. Yui Tsujino, an incredibly sensitive otaku (20 years old) who lives alone, makes her AV debut.

A deceptively innocent-looking face with an angelic aura leads to a surprisingly big and firm buttocks! With a gentle smile, the sadistic woman, Yui Mahiro, makes the masochistic man react as she forcefully bounces her buttocks in a stake-riding position, mercilessly draining every last drop of his semen.