The innocent and beautiful girl, Yamai Rin, was used as a test subject for a new type of aphrodisiac. (REAL-684)

A medical facility, under the guise of short-term work, experiments with a new, powerful aphrodisiac on a female college student. Four newly developed aphrodisiacs are allowed to run rampant within the unsuspecting Yamai Rin. The entirety of that innocent college student's 96 hours, filled with madness and pleasure, is captured here.