Sonq Shiqiao (Angelababy), 22, lives with her devoted mother, widowed shop owner Zheng Qing (Jiang Shan). Shiqiao, who always dreamed of being a ballet dancer, cannot exert herself physically as she suffers from form of myasthenia, a neuromuscular disease, that her father died of; the medication she takes also causes memory lapses. One day, at a charity fair, she bumps into Gong Ning (Mark Chao), a former high-school friend she always liked, and the two end up dating, despite the initial disapp...