[Older woman-younger man romance + marry first, fall in love later + both devoted to each other + extra sweet]
A greedy, lustful assassin × a beautiful, clever, sickly scholar
After escaping from a den of thieves, the assassin Cui Yuqing wastes no time marrying Lin Chuo, a beautiful, sickly scholar.
Lin Chuo is handsome and sweet-tongued, always indulging his wife, a formidable martial artist. But it is all an act.
That doesn’t stop the lustful Cui Yuqing from having her way with him.
Later, Lin Chuo falls for her. She kills, and he buries the bodies.
From then on, Lin Chuo’s greatest fear is that Cui Yuqing will leave him.
So he studies as hard as he can and works his way up the ranks in government, all so he can gain enough power to protect Cui Yuqing.