Li Jianping, the founder of Huayan Group who retired thirty years ago, transforms into an old street braised food stall owner, solely to spend more time with his granddaughter An'an. He sets up his stall near his son's home, yet encounters misunderstanding and contempt from his daughter-in-law and mother-in-law, taking refuge in a warehouse. When his son's company faces siege and falls into crisis by opponents, Li Jianping secretly investigates internal troubles, reveals his identity at the board of directors, and purges the villains. Helping his son secure the project and resolving family estrangement. After the storm subsides, he chooses to hand back power, returns to the mundane world to continue running his stall, and enjoys simple happiness amidst the fireworks of the mortal world.