The girl Mo Xingxing suffers from alternating bouts of binge eating and anorexia. Her mother sacrificed herself to save a boy when Xingxing was very young, and since then, this broken family has rarely known the sound of laughter. Growing up with the label of “hero’s daughter,” Xingxing has the sensitive and fragile nature typical of girls. Whenever she is mentally distressed, her condition flares up, causing her to consume an alarming amount of food in secret. After her classmate Mi Sha accidentally discovers this secret, the friendship between the two girls rapidly deepens, and Xingxing finds unprecedented friendship and comfort in Mi Sha…