kaizuka hiroko

She is an exceptionally intelligent girl, a dragon bearer, and Shiina's friend. A group of bullies, including Aki Honda, Miyoko Shito, Hiroka Takamura, and Mihaya Ozaki, torment her when she doesn't score low on exams. The manga and anime depict instances where the bullies force Hiroko to eat worms from a beaker and another instance where they insert a test tube into Hiroko's vagina. Moreover, Hiroko's parents reprimand her for not achieving higher grades, oblivious to the fact that her poor performance is the price she pays to keep the bullies at bay. Finding comfort only in Shiina, she cannot confide in her about the bullying and must endure it—until the day she breaks. She murders both her parents and many of the children who bullied her using her dragon child. After experiencing the injustices within Japanese society, she wishes for everything to vanish.