Shiina Hitomi

The school nurse at the school where the protagonist attends. With her mature charm, many male students frequent the infirmary even when they have no reason to be there.

She has a wicked personality, enjoying toying with others, and often makes suggestive advances toward disinterested students,
manipulating men for her own amusement.

On the surface, she pretends to be a kind and serious school nurse, but in private, she seeks out male students who catch her eye. It seems the protagonist is also one of her favorites, and she often subtly tempts him.