Hatsumi is mistakenly caught up in a murder relating to an urban myth that has been passed down throughout the Wakakusanmoegi Girls High School. Mayuki rushes to help her and it is his influence via Seiran who is able to see that Hatsumi can return home while the investigation proceeds. Hatsumi is troubled as she tries to think what has happened and also remembers her past and how she came to stay with Mayuki.