DASS-792 A mother and son are locked in a room where they can't get out unless they ejaculate 10 times. They endure their desire to have sex with each other and ejaculate repeatedly. Yurika Aoi

Akira can't stop masturbating with his mother Yurika's underwear. This excites his perverted mother Yurika, who then soaks her son's underwear with her scent to induce him to masturbate. Unable to stop masturbating herself and wanting to do something even more lewd, Yurika finds herself looking for participants for a project. The project is a "room you can't leave unless you ejaculate 10 times" by the adult video maker Dasu!. Unable to control her desire for her son, Yurika secretly signs up to participate without telling Akira...