The long-awaited second live-action adaptation of the hugely popular adult comic Midareuchi. In this adult tennis-club role-play, captain Kaori Kitamura is forced into Ami’s circle of casual sex partners after her less capable junior grows jealous of her. Kaori is made to have sex nearly every day. She desperately tries to keep it from affecting her daily life, but her body gradually becomes conditioned to the pleasure. Her concentration fades, while the side effects of emergency contraception leave her in particularly poor health, and the nonstop sex begins to undermine her performance as the club’s dominant ace. Noticing the change in Kaori, Masaya asks Ami to let him join their so-called study group so he can investigate. He is invited to their weekend overnight study session, but what awaits him there remains to be seen.