Raised in a single-parent home, Daiki is a rebellious junior high school student who makes his teachers cry. However, in front of his homeroom teacher's daughter, Kagura, who is hospitalized due to physical weakness, he is strangely honest. One day, a boy who claims to be an angel appears, whom only the two of them can see. The boy says that he will grant Daiki's wish if she completes a task he gives her ......? (google translated)