Miboshi (箕宿), born under the star Winnowing Basket (箕), is the last of the Seiryū Celestial Warriors to appear. While he looks like a young boy, he is actually much older than the other Seiryū warriors. As a Celestial Warrior, he is capable of possessing others as well as summoning and controlling demons. He employs a Tibetan prayer wheel with sutras inscribed on it to summon monsters and perform sorcery. He is known also as Mimadō.
Miboshi possesses Chiriko's body and attempts to use him against the Suzaku warriors. Chiriko succeeds in overcoming the possession and regaining control of his body for long enough to stab himself, killing both himself and Miboshi.