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The described entity is a powerful demonic weapon that serves Shihō. In human form, it appears as a small boy who resembles a girl, and in weapon form, it takes the shape of paired swords. During battle, it transforms into Shihō's younger sister, Mirai. Like many of the subordinate demons, it is extremely arrogant and despicable, refusing to surrender to "weaklings." It uses Shihō's memories of his sister to try to break his will. Unlike Yūichirō and Ashūraru, it seeks to assert its dominance through violence. However, despite all this, it seems to have affection for Shihō.