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 disapproval of her mother. Gong Ning dropped out of university to spend more time with a rock band he leads; also, his girlfriend, dancer Peng Wei (Cindy Yen), has dumped him because of his inability to focus his life. However, for Shiqiao, Gong Ning is the perfect partner.