Toujou, Ruby

橙条瑠妃

Ruby Toujou is a witch from the human world who participated in a plot to destroy mankind, retaliating against a large garbage dump that polluted her mistress's sanctuary. Her hatred for humans originates from a car accident caused by a drunk human driver, which killed her parents while the family was vacationing in the human world. After recalling the love her parents had given her, she tries to persuade her mistress to cancel the plan, but fails because her mistress was determined to destroy the human world. She vanishes after her mistress is defeated and put to rest, then reappears when Tsukune loses control as a ghoul, helping Mikogami seal his abilities. She now lives at Youkai Academy as Mikogami's aide and continues working for him in the second manga serialization. Although not an official student, she is permitted to join the Newspaper Club. In the anime only, a running gag features her randomly switching positions to assist the school. When asked why, she claims "many many things" have happened, though it is believed these are orders from Mikogami, repaying a debt of gratitude for giving her a new magic wand.
An omake later reveals that Ruby works under Mikogami because of her infatuation with Tsukune, allowing her to stay near him by working at the academy. The anime omits her master and parents, drastically altering the events surrounding her, including the reasons for her return. Much of Ruby's magic centers on a motif of ravens and flora, serving as familiars and alternate forms, with her most notable form featuring six raven wings with razor-sharp feathers on her back. Apparently, Ruby has shown herself to be a masochist and the biggest pervert of them all during a training exercise for Tsukune to control his ghoul powers, even admitting to Tsukune a desire to be his "toy" while under the Lilith Mirror's influence.