an innocent chilled at day. a gang fighter at night. Misaki Takahashi live to fight to get all his anger out after his parents death. But after a fight that went wrong making him to loos some of his eyesight and bring his secret out to the light he had to promised not just to his brother but himself that he would never fight again. In the other hand, in Shinobus side, his trying to forget about his abusive pass by fighting with random people, but when he rejects the leader of his school gang, he ends up been in the hospital were he meets Misaki and Nowaki, who also have a dark pass. these three people will go threw many obstacles to reach the happiness, but will they? after all, once a fighter, always a fighter.