Seiji Utsumi was satisfied with just gazing at his beloved Shou-sempai from afar. But when his classmate, Yuki Kurokawa, finds out about his crush, she pushes him to take action, and his one-sided love starts moving rapidly!Kurokawa has been feeling more and more weighed down by the pressure of Utsumi's kindness and consideration, and when she can no longer bear it, she tells Utsumi she wants to break up. Utsumi is unable to accept this new reality, and hides himself away in the apartment of Mai, a girl he met through his photography seminar. When Kurokawa and the others find out, they head there to confront their friend...