Delivery worker Lin Yan is unexpectedly chosen by a system to experience the life of a business CEO for a limited thirty days, while the original owner's consciousness spectates the entire journey in a special form. Placed in a completely foreign environment, Lin Yan is not consumed by fame and wealth, continuing to act with a simple, direct 'worker's mindset'. Breaking the workplace norms with his highly contrasting style, he even uses his rare honesty and relaxed attitude to resolve office disputes by chance, while repairing the original owner's long-estranged childhood friendship and true love.