This is a story about companionship and trust. He has a cold face. He was once a handsome and brave detective, but now he is depressed and decadent. She is a girl who refuses to admit defeat. She has a smooth journey from school to the workplace, and there are no surprises in her life. "Quality is a good thing, and you'd better have it." When they first met, the two of them started to argue with each other neatly. He was burdened with the heavy memories of four years ago and licked his wounds. She tried her best to help her, but she became the "judge"'s next target. Stalking incidents, strange blood stains, getting lost in the wilderness... Bizarre incidents happened one after another around her. This time he did not choose to escape, but to protect, and a thrilling pursuit of the murderer began. For some people, quarreling turns into teasing. Some love has already been written from the beginning. Because I have passed through too many unbearable scenery, I should know the meaning of the rest of my life.