My Unfaithful Husband, Lord of Hell

Su Yao is manipulated by her adopted sister Su Yingxue, turning her into a villain and causing her to lose her closest relatives. In despair, she signs a marriage contract with the Lord of Hell, Mo Chen, to gain the power for revenge. Afterward, Su Yao tries to break the contract, but Mo Chen needs this power to break a seal, aggressively pursuing her until she develops feelings. Just as Su Yao truly accepts him, she discovers that everything is a carefully laid trap by Mo Chen.