The Concubine Bride

Everyone else who transmigrates gets to live in luxury. They are either noble heiresses or, at the very least, charming young ladies. But what about her? She has become a concubine, and one brought in to bring good luck to a sick man, at that! Once you enter the mansion, it is as deep as the sea. Everyone inside is a schemer, and the little bride brought in for good luck must tread carefully every day. If life is going to be this hard, she might as well pick the lock and escape as soon as possible! What? The main gate is shut, and even the side door is guarded? If there is no way out, she will claw her way to freedom!