A pair of men and women explore an abandoned building with their university club friends! The distance between them is shortened and they are aroused by the happenings such as breasts touching when they cross their arms, and panties showing when they squat! And the girls are also excited! When their eyes meet, they get so horny that they want a dick! In the ruins where no one can find them, they can't stop each other and have sex while seeking each other!