Moon is a happy and confident plus-sized girl. She’s working as a mascot performer in a theme park. She never cares about how other people judge her until she accidentally involved in a slimming competition. She even becomes the “Nation Goddess” who is constantly being watched by the netizen.  Getting lost in the fancy internet world, Moon’s life has turned upside down. She loses the support of her parents and even her besties. What can she do to regain her true happiness and win back the people she loves?