Trying to Remember a Post-Apocalyptic Novel, Does Anyone Know It? 忘记了一本末日文，有兄弟姐妹们知道的吗

A few days before the apocalypse, he gets a simulation System. He's a single office worker with no family, living alone in a rented apartment. He uses the gold jewelry meant for a matchmaking date to run a simulation. In the first simulation, he seems to get bitten by a neighbor's dog, then dies after the virus outbreak when the dog mutates and bites him. His parents are both dead, and his younger sister is in high school...