Ep. 1: Ten years after the Lightless Realm's creation, Kukujicho grows desolate as fear spreads among its residents.

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A decade has elapsed since the Lightless Realm came into existence, leading to increasing desolation in Kukujicho as the populace's anxiety intensifies. Akashi Saginuma, a distinguished student at Kukunochi Academy, is summoned by his instructor alongside his friendly companion, Iwato Namito. The two are then introduced to a specialized pilot training course, an exclusive program designed for the most exceptional students who have been carefully selected for participation.