The move-in to the 'TSF Share House' that I had applied for a long time ago has been decided. Seven men and women, each with their own reasons, switch places and live together. To understand the opposite sex's body, they bathe together, masturbate with their legs spread hidden in the toilet, and are continuously tempted by the residents and the manager's lewd advances! The answer that the two who switched places and had sex with themselves came up with is!?