Hatomune Mie rules a province as a feudal lord encountered by the protagonists. He first appears presiding over a "Breast Shaking Contest," where witnessing a competitor’s accidental exposure ignites an obsessive quest to touch her bare breasts. This compulsion overrides his duties, driving him to abandon his station and live incognito among commoners.

Standing 5'4" with jet-black hair and eyes, he wears a traditional topknot and facial hair. Though consumed by breast-focused antics, he displays unexpected compassion by aiding a protagonist’s escape from a rival lord’s palace. When offered breast contact as reward, he refuses, prioritizing consent over desire, then returns to governance with vigor.

His persona merges absurd fixation with ethical flashes. He routinely shirks administrative tasks to chase personal whims yet exercises self-control when integrity matters. The narrative contrasts his socially transgressive impulses with an ingrained honor code, shaping key story developments through this duality.