After getting caught up in the chase with Momo, the young boy, Hibiya Amamiya, spends time with his friend, Hiyori Asahina, who he has a crush on. However, his plans to spend the summer with Hiyori is hindered by both her cold attitude towards him and her smitten behaviour towards the strange resident, Konoha. The following day, on August 15, Hibiya finds himself in what appears to be a dream in which Hiyori is hit by a truck whilst chasing after a cat, whispering something before she is hit. As this dream seems to loop, Hibiya attempts to keep Hiyori from danger, but she is always killed in some manner upon encountering a black cat. In the end, Hibiya decides to take Hiyori's place as the victim by throwing himself in front of the oncoming truck, mocking the cat before he is hit.