The Sweet, Unrestrained Love of My Contract Husband

[Marriage first, love later + age gap + sweet romance + clear-headed heroine who isn't love-struck + secondary couples] Tu Hua comes from a small town. To secure the best medical care for her mother, she agrees to a marriage of convenience with Fang Lue, one of the most untouchable power players in Jingchuan. Fang Lue leaves on a business trip as soon as they walk out of the civil affairs office. Whether they're married or not, nothing changes: they each do their own thing and fulfill their own duties. That is, until an unexpected encounter at the airport forces them to start living as a couple under their agreement. “Fang Lue, let's call off the agreement!” Fang Lue is worried and afraid. “Let's be a real couple!” “I'm just making a suggestion. You don't have to accept it.” Fang Lue pulls her tightly into his arms and says in a trembling voice, “What should I do? I... I don't know how to put it, but this is something I've been looking forward to for a long time.” “Your marriage-first, love-later story was my plan all along.”