Hidden Love in the Harem: Night Shadow

She is a shadow in the night, ordinary and inconspicuous, born only for the Naan Dynasty. He is the crown prince of the Ye clan of the state of Yi. He is as charming as a charm and has great power over the world. When we first met, he was just a weak third prince. Five years of love can't buy you any tender treatment. Who says children don't understand what love is? It's a pity that the person in his heart is not her. When they met again, he was already a high-ranking crown prince and... Became her brother-in-law. For the sake of her sister, she was willing to enter the palace as a maid, even though she always faced his coldness and resentment. But she didn't expect that she would face more than just this... A battle for the throne brings back the dirty past. Behind the conspiracy, who is the mastermind behind the scenes? Carrying her destiny, how should she choose between responsibility, family affection and love?