Mafuyu is the no-nonsense, take-charge and hard-hitting leader of her high school gang. But when she gets expelled for being a delinquent, her mother, fed up with her daughter's wayward ways, sends Mafuyu to an isolated school far off in the country.

So far every Student Council member who has gone up against Mafuyu and the Public Morals Club has fallen to the team's superior friendship skills. But Kanon Nonoguchi has a plan to turn their strengths against them! She's spreading rumors that Midorigaoka girls are in danger and counting on Super Bun to run to the rescue...and right into her trap!