Itogami Island had returned to a peaceful state and Kojo's party was getting excited about the upcoming Valentine's Day. Meanwhile, Kojo sees Asagi getting into a car with one of Vatler's subordinates, and starts to get suspicious. Grenda, who was with Shio and Yuiri, is attacked by Veres Aladar, the Imperial Council Chairman of the Warlord's Empire. Grenda flees to Itogami Island, where Kojo is located.

Kojo wakes up at Natsuki Minamiya's house. On TV, Asagi and Vatler appear to be working together and declares war against the Holy Ground Treaty Organization. In addition, Asagi says that Grenda will use Cain's legacy that she has protected as her power, to help save Itogami Island. Meanwhile, to save Nagisa, whose life is in danger, Hektos tells Kojo and the others that she will need to hold a ceremony.