Bon Yamawaki

山脇・ボン・イヴァール

__Birthplace:__ Kumamoto __Unit:__ 31C Self-proclaimed mad scientist seeking world domination, accompanied by her sidekick, Yayoi Bungo. Leader of Squad 31-C, of the same generation as Ruka's squad. Because the "A" squad is considered elite for each generation, she challenges 31-A for that designation. While coming off as hot-headed and haughty, she is actually a kind-hearted individual who cares for her friends.