University student Sorano Kakeru, who carries emotional trauma related to human relationships, notices a woman quietly reading a book alone during one of his classes. One day, Kakeru is forced to attend a class gathering with his dorm roommate, where he meets Fuyutsuki Koharu, a visually impaired woman. She turns out to be the same woman he had seen reading in the classroom.
There, Kakeru learns that Koharu cannot see, and through a series of circumstances, he begins supporting her with her coursework. As Kakeru is exposed to Koharu’s brightness and positive outlook on life, he gradually finds himself drawn to her. Koharu, in turn, becomes attracted to Kakeru for treating her naturally and without special consideration despite her blindness.
Having avoided deep relationships due to a past incident, Kakeru nevertheless decides to help fulfill one item on Koharu’s “things I want to do in life” list, launching fireworks. As he sets out to make her dream come true, Kakeru begins to confront his own fears.
