Feng Zhaoli, the young master of Yuxu, married into Tianxu Palace. She thought it was an alliance between the two clans, but in the secrets of Jiudeng, Mingyu and Wangu, she gradually saw the complex conspiracy behind her mother's old case. She was once naive and soft-hearted, and she once regarded the protection of others as a way to survive. It was not until those around her were involved in the situation one after another that she realized that if she wanted to protect the important people, she could not just bow her head and beg for mercy. The cold and stern young master Xuan Chen protects her but also traps her; the gentle and noble girl Hua Xuyue sets up a trap step by step, hiding her edge in her smile. The old order of Tianxu Palace finally reached out to her, and Feng Zhaoli no longer acted as the assigned chess piece. She wants to investigate old cases, regain her destiny, and make everyone who owes her pay back one by one.