第 3 集: Sena 調查一起自殺案，Aya 和 Kyo 則潛入 G 班

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Sena's suspicions over the death of his friend drives him to track down the culprit who triggered the suicide. He refuses to listen to Aya's warning that it is not part of Knight Hunters' mission and takes action on his own. Aya and Kyo sneak into Class G building to uncover the school's secret. There, the combat troops of Class G were waiting for them. (Source: Prime Video)