Thirty years old and 105 kilograms of weight, lunch lady Ying-Juan was dealt a bad hand. She works at her mother’s childcare center and has a harder time fitting in than a T-Rex in a petting zoo. On her birthday, Ying-Juan’s mother signs her up for a weight loss program. To earn her mom’s approval, Ying-Juan reluctantly joins the class. But things change when Ying-Juan meets Wu, a deliveryman who bears a checkered past underneath his radiant smile. Encouraged by Wu, Ying-Juan becomes more determined to lose weight. Meanwhile, Ying-Juan discovers Xiao-Yu, a straight-A student at the childcare center, is a secret cross-dresser, and special bond begins to form between them. Just when things are getting on the right track, Ying-Juan’s passion for cooking and life seem to be fading away due to her over-aggressive diet. Bitterly, Ying-Juan finds herself standing on the brink of a meltdown, both physically and psychologically…