"In Another Day at Abydos High School…"

"Shiroko, Hoshino, Serika, Nonomi, Ayane, Hifumi, and you, as the Sensei, are all waiting for someone special—a girl from Gehenna Academy who has recently transferred to Abydos High School. As Sorasaki Hina, with her new appearance, approaches, there's something familiar about her, even though she now wears the 6th robber's mask. Hina-chan greets everyone warmly and…"

Sorasaki Hina : Well, it’s time for us to rob a bank in the city of Kivotos, right?