The mock battle splits the mages into two teams; the Blue Team, featuring Vivio, Nanoha, Subaru, Rio, Lutecia, and Erio Mondial, and the Red Team, consisting of Fate, Einhart, Corona, Teana, Nove, and Caro Ru Lushe. As everyone focuses on their chosen opponent, Corona uses her new device to summon a Golem to fight against Rio, though still struggles against her fighting style. Believing the Blue Team's strategy revolves around Nanoha, Teana sends in Einhart who, despite managing to break out of her bind with a move she learned from Nove, is ultimately overwhelmed by Nanoha's power. The Blue Team soon carry out their plan, facing against the Red team's members two-on-one, while Teana prepares a counterattack.
特訓合宿のメインイベントは、チームを青組赤組に分けての模擬戦！お互い、普段の練習の成果をぶつけ合う面々。スバルとノーヴェの姉妹対決や、コロナの操るゴーレムと、リオの格闘戦技の怪力対決。そして、アインハルトと最強のママなのはとのマッチアップ。アインハルトは、なのはとの対決に心を躍らせ、川遊び中に覚えた水斬りを応用してアンチェインナックルを披露する。お互いのチームが一歩も譲らぬまま、戦いは佳境へと向かって行くのだった。
