With two fighters eliminated on each side, Nanoha and Teana launch Starlight Breakers at each other, the aftermath leaving just Vivio and Einhart remaining in the game, ultimately ending in a double knockout. After a few more mock battles featuring different matchups, Lutecia tells Einhart about the Inter-Middle Championship, a tournament for young mages which everyone is interested in entering. Wanting to fight more with Vivio, Einhart decides to enter the tournament as well. With Einhart needing a device in order to qualify, Lutecia gets into contact with Hayate Yagami, who offers to make a device that suits her fighting style. In the meantime, Nove begins training Vivio and the others for the tournament, with many strong fighters looking to enter.
模擬戦もクライマックス！次々と脱落者が出る中、残ったヴィヴィオとアインハルトとの３回目の一騎打ちで幕を閉じるのだった。そして合宿から帰ってきたヴィヴィオたちは、十代最強女子の名前に向かってインターミドル・チャンピオンシップに参加することになった。参加の必要条件を満たすため、アインハルトも個人デバイスをはやてたちに作って貰うコトに……。
