A spirit guide of the underworld and Shiro Mujou's older brother. He's the type who needs constant supervision from his younger brother just to get basic tasks done—not exactly the most reliable guy around. Despite his blunt, sometimes aggressive personality, the two brothers actually get along pretty well. He's deeply devoted to Shiro Mujou, willing to give up anything for him, and doesn't let it get to him when he's ignored or rejected. It's clear he loves his brother unconditionally, even if that devotion isn't always returned.
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