During a school trip, a collective living experience gradually gives rise to suspicion and anxiety. Who is the possessing culprit? Who is impersonating whom? A highly intelligent prankster with an IQ of 241 possesses the bodies of female students and teachers, triggering a chain of chaos. They urinate at male urinals, rummage through underwear, and indulge in perverted masturbation in front of mirrors. The thrill of discovering an unfamiliar schoolgirl's sensitivity, the pleasure of domination and conquest—this sense of control and victory arouses a sensation as if it's bringing my own pussy to orgasm.