In the “Academy Island Incident,” the destinies of four “kings” intertwine. Following this event, Silver Clansmen Kuroh Yatogami and Neko embark on a quest to locate their leader, Shiro. Despite their efforts, they find no leads on Shiro’s location, leaving them discouraged. However, their spirits are lifted when they witness HOMRA members Rikio Kamamoto and Anna Kushina being pursued by an unknown assailant.