Fallen: My Domineering Fake Brother-in-Law

Su Qianyu is the younger sister adopted by Su Qianyue's parents. She cares deeply for her, but after Su Qianyue is sexually assaulted, she develops severe depression and attempts suicide. She meets the cold-faced CEO Chu Yan, who saves her. She helps him deal with his family, and he stands up for her in public... Su Qianyue's depression is severe. She calls her sister back from overseas to take over the company, but while Su Qianyu is attending a business function, she chooses to end her life. Later, Chu Yan pretends to be Su Qianyu's brother-in-law, and the two weather every difficulty together. In the end, they get together...