After holding a pep rally for Eruna, Shigure tells her about how he and Kyōma transferred to Mikagura from another school, which revolved around sports clubs, where Kyōma became distrustful of other people. As Eruna proceeds further in the rookie tournament, Tonkyun goes up against Azumi, managing to trick her into coming up close so that he can take advantage of her ability's weakness and win the match. This leads to Eruna and Tonkyun facing against each other in the fifth round, where Eruna announces her plans for a "Surrounding Eruna Ichinomiya with Cute Girls Club". As the two clash, Eruna brings out a new ability, Toy Bayonet, to win the match, igniting Kyōma's love of painting once more. After Eruna is inevitably eliminated in the quarter-finals, the tournament is won by a girl named Otone Fujishiro, who defeats Asuhi in the final round.
High school student Eruna Ichinomiya enters the Mikagura Academy dreaming of a boarding school life filled with beauty. However, Eruna finds out that in the culture clubs, there is a rule that battles that are fought with special powers decide a club representative's treatment. Through various circumstances, Eruna becomes a representative of a club, and is thrown into the fray.
