After I Became His Substitute Bride, My Husband Could No Longer Pretend to Be Dead

The disowned daughter of a wealthy family is forced into a substitute marriage with its "vegetative" young master, but she is secretly hiding three secret identities. After the wedding, she discovers her husband isn't actually in a vegetative state. Two people both pretending to be someone they're not end up living under one roof. Their mutual probing turns into secret affection, until a misunderstanding drives her to leave without looking back. He gets down on his knees and begs her to come back.