The daily life of Kuuya, who returned to Hiiragiya, is back. He is surrounded by six older sisters, doing household chores and taking care of his older sisters, but when he’s sick, he’s a sick man! Although he thinks that he has a bad relationship with his sister, his body and feelings are different! He is sometimes confessed, sometimes helped, sometimes drowned in desire … Hiiragi’s daily “sexual” activity is a slapstick fuss centered on Kuya !!