Kazuhiko, a graduate of a prestigious university, wasn't enjoying his life, until he takes a job at a bathhouse. Then he discovers that the baths are used as a space for killing people after closing hours.

Melancholic

The third spin-off that focuses on the members of the "Yamazaki clan" who are active in the popular chivalry series "Japan Unification." The "Yamazaki clan" is a group of popular characters who are known for their "unification of Japan" and are made up of the main members of the unique Chiyokai, centered around Himuro and Tamura.