Kotarou and his friends go to Hiroshi's mansion to access resources for an assignment. Hiroshi, making Takashi unwelcome, forces all to study inside a jungle environment. Kotarou and Koboshi go and get more books but gets trapped inside Hiroshi's training room. Kotarou arrives in the Mitarai hall and Hiroshi explains his duty of being a Mitarai leader. Later that night, Kotarou learns that angels also have exams.