After Shen Nanzhi's family was wiped out, only Shen Nanzhi and her brother Shen Changqing survived. Through a button left at the scene, Shen Nanzhi suspected that Warlord Yan Jiulin was the enemy. She assumed the identity of the maid Su Ying to sneak into the Warlord's mansion to find the truth, during which she became involved with Yan Jiulin. She plotted to have the maid Meng Ying take her place as a concubine, but was framed by Meng Ying. Shen Nanzhi was rescued by the Second Young Master of the Yan family and learned the secret of the Yan family's special buttons. Later, Shen Nanzhi plotted to expose Meng Ying's affair, leading to her suicide. Jiang Yiyi, the Governor's daughter, envied Shen Nanzhi and conspired with Yan Tianyi to push Shen Nanzhi down the stairs...