Let's Go to School by the Sea!.Under observation by the government, Akuto is depressed to find out he cannot go to the seaside school on an island. Korone arranges for him to go by offering to take responsibility for him herself. However, she makes constant attempts to seduce him. Akuto tries to enjoy going to the beach with Junko, but both Kena and Korone interrupt when the former two are having fun. Later on, Hiroshi tells Akuto about the legend of the Demon King that is told by the people on the island. The legend says that the revival of the demon king and the dragon will call forth a legendary hero who will defeat them in battle, but Akuto is skeptical. Meanwhile, Lily Shiraishi, informing Fujiko about the government's plan to use Akuto for its own benefit, says that she will handle this situation on her own.