While hiking, Manami falls and loses her memory, only to be taken in by a man who surrounds her. He teaches her one thing about her pure body. Opening her legs herself, she is guided by his vulgar words as he directs her body. Under his intense seduction, Manami gradually regains consciousness, pressing herself against the man's groin once again. This series of events, where the man's desire crosses paths with Manami's innocence, portrays the relationship between two people caught in a whirlpool of desire.