Tamashizume

A high school girl named Itsukushima Hinata leads an ordinary life until a mysterious man appears and disrupts it. The man, dressed in an ancient-style costume, insults her best friend and provokes her. In a sudden and unexpected moment, he hugs her, triggering a transformation. As a result of this encounter, Hinata's soul merges with the man, potentially making her the Goddess of War.