The Killer Lover's Dangerous Love Step by Step

She is a killer who "longs for warmth", and he is the leader, the president of the Bai family, who is charged with "killing his father and brother." Step by step, she walked into the trap woven by her 'sugar daddy'; She chose to abandon her feelings and marry Diamond Xiaokai just to take revenge on the Bai family; He obviously wanted to give her a future, but he had no choice but to make a promise to her; Will she become his sister? Still, Qingren! Every step is in danger, every step is in love!