Kazushi, a university student living alone, was troubled by the existence of his childhood friend sisters who spend their time in his apartment.
His cheeky older sister, Ayane, and her own paced younger sister, Kotone. Because the two of them are always there, he finds himself in a semi-forced ascetic life . Even though he was wearing a swimsuit, Kazushi’s reasoning was shaken by the soft feeling of being in close contact with his body .