The CEO's Mistaken Bride

Part-time nurse Seraphina Jennings accidentally saves the injured Young Master of The Knight Family, Jenson Knight, and sleeps with him while he is drugged. Jenson orders his assistant to find and marry his savior using a token. Her cousin, Lina Linden, impersonates her. Lina enters The Knight Family and bullies Seraphina, who is kept in the dark. Seraphina finally learns the truth, reclaims her identity, and finds love with Jenson Knight.