Qi Feng is 42 years old. His bookstore is on the verge of bankruptcy and he can't even pay the rent. One day he was pulled into a WeChat group, and the group owner turned out to be his grandfather who passed away 23 years ago. The first message read: Every time a person born in their 80s is added to the group, the reward will be doubled - 100, 200, 400, 800, with no upper limit. Starting from two old acquaintances, Qi Feng recruited people all the way, and the bonuses increased from a few hundred to millions. The Post-80s Alliance was formed, a group of middle-aged people who had been beaten down by life, and followed him to make a comeback from a shabby bookstore.