Code: Breaker. Sakurakouji Sakura is a girl who appears humble and polite but is skilled in martial arts. After seeing a boy burning people with his blue flame, she is surprised to see that Oogami Rei, the same boy is a transfer student. Oogami is a breaker of code, one that "does not exist." He's an evidently cold-blooded murderer who practices the "eye for an eye" theory of "using evil against bad." Convinced that killing is false, Sakurakouji is setting out to stop him and pierce his frozen heart.