Summary
Ryoushirou Hayasaki goes back to his parents’ house for treatment after hurting himself in a soccer game. Only his four older sisters—Yurine, Noemi, Naru, and Mio—will be there to greet him when he returns from his current overseas adventure.
Noemi discovers her brother’s racy comics and love letters from his younger classmates, which quickly disrupts his calm recuperation. Following a family quarrel, the sisters are at conflict with one another after realizing that Ryoushirou suffers from a little sister complex. Ryoushirou contemplates escaping the house due to his depression and frustration. Nevertheless, that evening, he receives an unanticipated visit from Yurine—a stunning, short-haired woman who is eager to assist him in his rehabilitation and compensate for the outburst of the other sisters. Ryoushirou, unable to control his cravings, plans to make the most of his time here and enjoy all the sights and sounds.