Niina Sugawara 菅原新菜

Kazusa's friend, a melancholic girl who the guys call a "crane" because of her fragile beauty. Initially, Niina ignores the boys because of a harassment experience in her childhood but gradually begins to develop feelings for Izumi because of his caring and kindness. Thus, her loyalty to her friend and their common love of one boy quickly becomes one of the main conflicts of the story.