He is a killing machine carefully crafted by Heaven. He is forced to reincarnate to kill evildoers. He cannot live past the age of 20 in each life. He does not get any family affection, which makes him want to get rid of control. When he discovers that his memory has been tampered with and that there is a more terrifying truth hidden behind reincarnation, a fatal choice lies before him: continue to be a blade of heaven, or become a rebel who tears apart destiny?