Upon taking out their father's mementos (tuning forks), the Yugiri twins remember the day they visited Torvas Divine Song Players Academy as prospective students. They meet Phoron and Eufinley for the first time. Later, Pelse finds that she left her father's memento in the changing room, so they go after school to retrieve it. When they find Pelse's fork, Prinesca hears Phoron singing. At the same time, Corticarte, who has been imprisoned underneath the school, hears Phoron's singing and goes berserk and frees herself from her chains.