Yu Shuyun is conspired against by her younger half-sister and fiancé. After spending one passionate night with the drunken Li Huaiyu, she becomes pregnant. Hunted down, she flees abroad and gives birth to An'an. Five years later, she returns home with her adorable child to seek revenge and investigate the truth behind her mother's death. Li Huaiyu loses his memory after suffering serious injuries, and Yu Shuyun takes him in. During their investigation, Li Huaiyu is injured in the head again while protecting Yu Shuyun, recovering his memories. However, wanting to investigate whether An'an is his biological child, he conceals the fact that his memory has returned. Another woman schemes to drive a wedge between them. After Li Huaiyu is injured saving Yu Shuyun, he finally confesses his feelings. An unexpected incident exposes An'an's true parentage, and after the two reveal their secrets to each other, they discover that they share a common enemy.