Nach dem Sieg beginnt ein gutes Leben für Eruna, doch wer schnell aufsteigt, fällt auch tief. Doch auch hier scheint es einen neuen Ausweg zu geben. Seht selbst.
After learning about an upcoming rookie tournament for new students, Eruna reports her victory to Seisa, who claims that she only won because Himi held back and challenges her to a practise match with her club membership on the line. Prior to her match against Seisa, Eruna observes a practise match between the Astronomy Club's Asuhi Imizu and the Drama Club's Yūto Akama, with Yūto winning with a single strike. The match between Eruna and Seisa soon begins, with Eruna attempting to destroy Seisa's crystals whilst she is dozing off. However, Eruna's Toy Gun fails to activate and she is overwhelmed by Seisa's "Killing Art" ability, getting kicked out of the Going-Home Club as a result. Bimii, after informing Eruna that she needs to build more experience to use her ability properly, suggests that she form a club of her own, using the rookie tournament to attract potential members. Admiring her determination, Seisa lets Eruna bring her sleeping bag into her mansion.
謎の少女から授かった必殺技「オモチャの銃」の力で対抗戦に見事勝利したエルナ。星鎖に褒めてもらうために彼女の住むお屋敷に押しかけたエルナだったが、相手が油断していなければ勝つことは難しかったと告げられてしまう。売り言葉に買い言葉と星鎖とだって良い勝負ができると宣言してしまうエルナに対し、星鎖は帰宅部への正式入部をかけた模擬戦を持ちかける。
대항전에서 의외의 선전을 한 에루나는 모두의 주목을 받게 된다. 그리고 이런 분위기에 우쭐했던 걸까 정식부원 승격을 두고 세이사 선배와 모의전을 하게 되는데…
