Now that the gang has escaped from No. 6’s boundary, Kou has found renewed resolve to become an exorcist like his big brother. But he doesn’t expect to come face-to-face with the supernatural who disappeared not so long ago – Mitsuba! The two head off on an impromptu adventure to enjoy the city nightlife, heedless of the danger awaiting them in the dark – and in the midst of it all, Mitsuba comes out with a shocking request!