Yomikawa Aiho (黄泉川 愛穂 Yomikawa Aiho?) is a character introduced in Toaru Majutsu no Index. She is a P.E. teacher at A Certain High School, and is good friend with fellow teacher, Tsukuyomi Komoe. Also a member of Anti-Skill, she cares for the well-being of children even if they are criminals, and absolutely believes that she will not use a weapon on children. She is the current legal guardian of Accelerator, Last Order, and Misaka Worst.