第 1 集: Hiroomi 回顧 Nase 家族回憶，以及與 Mitsuki 和 Izumi 的早期戰士訓練

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Hiroomi talks about his memories of the Nase family. In order to become a great Spirit World Warrior, Hiroomi is taught to persevere at an early age. Alongside Mitsuki, his loving little sister, is the strict and tender Izumi, who watches over the siblings. (Source: Kyoukai no Kanata Wikia)