Tsundere older sister Kaede and naturally cool younger sister Suzu are uneven twin sisters. One day, on her birthday, Hayato gets beaten up by Kaede and Suzu. Hayato is blindfolded in a luxury hotel room and becomes uneasy when Kaede and Suzu appear in their underwear! In order to celebrate Hayato’s birthday, the two of them will serve him as a gift… Twin sisters… will he be satisfied with the role reversal service play this time?!