Why is Secretary Su Like This

Su Wanruo desperately needs money for her brother's leukemia treatment. After being harassed at a bar where she works, she's rescued by Ling Yun and Fang Mu but loses her job. Ling Yun offers her a contract as his 24-hour personal secretary with ten times her current salary - working as secretary by day and warming his bed at night. With no choice, Su Wanruo accepts this unequal contract and lives as his contract lover for five years, gradually falling in love with him. However, Ling Yun only sees her as a contract partner and agrees to marry Xu Jiao, daughter of the Xu Group, arranged by his mother. When Su Wanruo decides to leave for a stable life, Ling Yun refuses, believing money is all she cares about. She discovers she's pregnant but becomes more determined to leave. Xu Jiao, jealous of the rumors, humiliates Su Wanruo publicly and conspires with Ling Yun's adopted sister Ling Yuyan to kidnap Su Wanruo's brother Su Cheng. Due to a mistake, Su Cheng dies from severe injuries and Su Wanruo loses her unborn child. Determined to seek revenge, she gets help from Fang Mu, who had loved her from their first meeting but stayed away for her happiness. Seeing that Ling Yun couldn't make her happy, Fang Mu becomes her strong support, helping her with revenge and teaching her self-protection skills. With Fang Mu's help, Su Wanruo returns to Rongcheng's business world, systematically destroying everyone who hurt her. After completing her revenge, she chooses independence over any man, establishing her own company to prove women's independence and capability.