Principal Hata challenges their teacher Ginpachi to have every student score over 80 in a test otherwise the class faces remedial lessons and Ginpachi gets a pay cut. Ginpachi and his students decide to do a cheating plan.
Late at night, Shinpachi goes back to school for something forgotten and runs into Kagura and Ginpachi. Shinpachi recalls the "Seven wonders". Ginpachi laughs it off, but suddenly a mysterious voice echoes from the empty room.
