On October 13, about a year after the events of the “Academy Island Incident” between four of the seven Kings, Silver Clansmen Kuroh Yatogami and Neko have been searching for their master, Yashiro Isana. Without finding any clues to his whereabouts, the two became disheartened. However, one day, they see HOMRA members Rikio Kamamoto and Anna Kushina being chased by someone.