Unification of Japan Gaiden: Yamazaki Ichimon 4 (2022)

The fourth spin-off that spotlights 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.