During an adult school-trip role-play, teacher Horiuchi loses his hotel room because of a booking mistake. Noa and Ena, two adult student-role performers with voluptuous bodies and enormous breasts, kindly agree to share their room with him. Curious about sex, the pair overwhelm him with their soft curves and crushing breast pressure, turning the night into a nonstop reverse-threesome harem. Titjobs and rich body play continue until morning.