Karasu Shoujo

Appearing no older than five years old and perpetually accompanied by crows, this mysterious girl holds the essential truth behind reincarnation and the soul. She claims to be the unseen force shaping the fate of the protagonist siblings, carrying herself with a calm, almost divine detachment—though when provoked, her competitive and childlike side surfaces without warning. In the later part of the story, she debuts under the stage name Tsukuyomi, taking on a role portraying the twins in their early childhood within a film production.