Hokari Kanae♀

Keisuke’s childhood friend, classmate and most trusted confidant. She's a kind girl, always caring for those around her and never losing her smile. Not only is she kind, but she’s also capable of speaking her mind when the situation demands it. She is willing to endure hellish treatment and nightmarish torture to help Keisuke escape, remaining unwaveringly devoted to him, even if her feelings are unrequited. But nevertheless, for Keisuke she's an irreplaceable friend and there is no one else for whom he'd want more to survive the Game than her.

[Edited from erogereview, MangaGamer and belucre's euphoria review]