Mysterious creatures called Moimon have suddenly appeared, possessing charming exteriors that mask an inherent savagery and tough bodies. Humanity believed they had finally established a master-servant relationship with these beings through training, but a new ferocity is spreading through wild Moimon, putting the survival of the human race in question.

The story follows Kakeru, a boy from a warrior tribe that survives by hunting Moimon, and Shimizu, a girl who dreams of adventure. Together, they set out to gather clues that might stop the ferocious mutation affecting these bizarre creatures. The narrative unfolds as a monster battle action series centered on the relationship between the boy who hunts Moimon and the creatures themselves.

The manga is created by Kizuku and launched on pixiv Comic in August 2024. The series remains ongoing, with four compiled volumes released as of March 2026.