Deshenglou founder Gu Changshan insists on serving full portions and quantities, but is rejected by his son Gu Mingyuan and daughter-in-law Lin Xiu, and driven out of the restaurant he built with his own hands. Gu Changshan, bringing his apprentice Luo Wen, engages in a blind culinary competition against his son's side. After losing, Gu Mingyuan and his wife edit biased videos to stir up online public opinion, while Gu Changshan produces complete evidence to prove his innocence, firmly holding on to the original intention of a catering practitioner.