Wife VS Concubine

I schemed tirelessly to become Shen Yu's intimate maid. Ning Wan, as the primary wife, made a point of showing her grace and understanding by treating me with great tenderness. With a soft smile, she said, "From now on, let's treat each other like real sisters." Her hidden hand, however, dug painfully into my arm. In a hushed tone, she whispered into my ear, "Your fate is sealed." I let out a cold laugh. Ning Wan would never suspect that she was my true target. It's still uncertain whose fate will end first.