Before she has even submitted her graduation thesis, Su Jianxing receives her own death certificate. Having just dumped her online boyfriend, who refuses to reveal his real name, she is suddenly thrust into a bizarre survival game. The apartment building eliminates the living, the school wants to keep her enrolled forever, and the hospital claims she volunteered to die. Using her wits, she repeatedly finds a way out of impossible situations, and whenever danger strikes, she encounters Shen Zhaoye. He is not bound by the rules, and even the supernatural entities fear him. Su Jianxing assumes he is merely a dangerous, mysterious stranger, unaware that he is the very ex-boyfriend who keeps apologizing and sending her pictures of his abs to beg for forgiveness. She is still teasing him, while he has been watching her for a long time. Why does he exist beyond the rules, and why has he set his sights on her alone?