Seven hours after grandma died, Chen Mo rushed back to Huaiyin Town. There is a coffin that should not be opened in the mourning hall, seven grains of rice are placed on the threshold, and four rules for keeping a wake are posted on the wall. The first three are life-saving. The fourth article reads: The Chen family has no eldest grandson.
Relatives looked at him as if he were a stranger who had barged into a funeral. Even his biological father did not recognize him. As midnight was approaching, the grandmother in the coffin suddenly knocked on the coffin lid three times and called out his name clearly. Chen Mo soon discovered that rules not only kill people, but also tamper with memories, identities and relationships. And he can change one word in the rules. But every time he changes his ID card, photo, fingerprint, voice... The world will take away something that proves his existence. When the entire Huaiyin Town remembers that he died fifteen years ago, Chen Mo must find out before he is completely deleted: why the Chen family has no eldest grandson, who is the girl in the coffin, and why the Ninth City, which specializes in managing "unrecognized people", has been waiting for his return.
