Fuko Ibuki

Fuko is not stupid, she has some knowledge about starfish

Fuko is a rather energetic girl, but she is often embarrassed to start new acquaintances. Foucault often refers to himself in the third person.

Foucault has been very fond of starfish since early childhood. She makes starfish out of wood to give as an invitation to her older sister's wedding.

She loves her older sister very much. Fuko's sister, Koko Ibuki, wants to get married, but she is not sure that she should start her happiness when Fuko is in a coma.

Since Fuko is actually in the hospital, in a coma, Fuko walks around the school in the guise of a ghost and gives everyone wooden starfish, because this is the only way she can congratulate her sister on her wedding. Her sister can't see her as a ghost. Foucault does not say that she is a ghost. Despite the fact that she is a ghost, this does not limit her at all; she can move wherever she wants. But she is at school most of the time.

For example, instead of “I” She says “Foucault”. Instead of "I've arrived!" says "Foucault has arrived" and so on