A middle-aged man suddenly finds himself living in a harem with four gyarus who showed up at his place uninvited. Once again, they use him to relieve their desires—draining him completely until he’s out of energy! One after another, the girls beg for sex, pushing him to his very limits! If Natsuki does it, then Ayane does too! If Reina does it, Lilia won’t be left behind! The nonstop, exhausting, and passionate sex with these gyarus just won’t end!