During the final adjustments of Plateau Island, Tsukimizu, experiencing a magical illness sign in a "dream" during this period, had a dream in a hazy state of consciousness. Despite the vague distinction between dreams and reality, these experiences began to elevate Tsukimizu's potential for "magic." In the midst of the blurred line between dream and reality, Tsukimizu glimpsed memories of the magical "system," which also held nostalgic moments for her. Simultaneously, in the village of Masaki, a shadow appeared at Tsukimizu's residence. It was an investigation into the "events of the previous night" in the sea, but disappointingly, there were "no traces." Glancing around, Tsukimizu noticed a "pamphlet" delivered by GP delivery, unintentionally catching her attention.