Episode :
After sustaining an injury during a soccer match, Ryoushirou Hayasaki returns to his parents’ residence to receive therapy. With both parents currently overseas, he is greeted only by his four older sisters—Yurine, Noemi, Naru, and Mio. His relaxed recovery is soon disrupted when Noemi discovers her brother’s adult comics and love letters from younger classmates. The sisters quickly come to the realization that Ryoushirou harbors a little sister complex, leading to a family dispute that puts the siblings at odds. Feeling depressed and overwhelmed, Ryoushirou contemplates leaving the house. However, that night, he receives an unexpected visit from Yurine—a short-haired, well-endowed beauty who is eager to assist him with his rehabilitation and to compensate for the outburst of the other sisters. Unable to resist the guilty pleasure, Ryoushirou resolves to make the most of his time and take advantage of the delights surrounding him.
