When Si Jiuyin, who was raised by the Zhao family, left, she mistakenly got into the wrong car and unexpectedly saved the critically ill old lady of the Bo family, thus creating an intersection with the capital circle's powerful figure Bo Xiyan. After returning to her original family, the Si family, she repeatedly faced harassment from her stepmother and stepsister, fighting back strongly with ruthless methods. During their time together, Bo Xiyan was deeply attracted by the cold and mysterious Si Jiuyin, while the young girl's multiple abilities in medicine, design, and her mysterious past are gradually coming to light.