START-599 "I'll be done in an hour..." Using karaoke as a substitute for love hotels, weekly secret trysts. Summoning the younger teacher who is her son's homeroom instructor to sing without singing and release sexual desires. A carnivorous mother riding

Film Introduction

Hikari, the only son's homeroom teacher who is younger, became close at a get-together and started consulting frequently one-on-one. Eventually, they began meeting secretly at a karaoke bar and developed a physical relationship. The man, who initially maintained his rationality, could not resist Hikari's accommodating nature and proactive approach, becoming engrossed in adulterous sex.