Sharing a rental and living together, human nature is tested right at a dining table. Su Qing took charge of cooking in the shared apartment, charging only a small grocery fee, but she could not rival the cooking temptation thrown out by new roommate Wu You. The roommates successively changed their dining partners, yet new food issues appeared one after another. Wu You misappropriated other people's food pictures to take orders for private takeout, and after the matter was exposed, she chose to move out. Su Qing saw through the warmth and coldness of human relations in shared renting and decisively moved away, relying on her culinary skills to run a fast-food stall to achieve self-growth, unveiling the reality of shared renting, and seeing clearly the boundaries of interaction that people should guard beneath interests.