It follows original character Hamaji, a skilled mountain huntress who joins her brother in Edo to hunt human-dog hybrid Fusé for bounty after rumors of soul-eating attacks. She befriends male Fusé Shino, leading to personal conflict between duty and empathy.

The story draws directly from Japanese folklore involving Princess Fuse and her dog Yatsufusa, emphasizing adventure, romance, and moral ambiguity in a historical Edo setting without modern activist overlays. The adaptation maintains traditional Japanese folklore roots with no alterations to established characters or insertion of forced diversity elements. Hamaji's capable lead role stems from her in-universe hunting skills and practical crossdressing for access rather than any identity-driven messaging. Themes of prejudice and coexistence emerge naturally through personal friendship and folklore traditions instead of systemic critiques or didactic lectures, resulting in a low level of ideological content overall.