I Transmigrated into a Mischievous Heiress and Forced the Villain into Submission

[A spoiled, sharp-tongued doll of a princess who talks tough but has a soft heart vs. a scheming, green-tea male lead who just wants to be his wife's dog.] Su Qing transmigrates into a novel as Jiangcheng's lawless little princess. The original owner bullied men and women alike, throwing her weight around and doing every kind of wicked thing. On her very first day in this new world, she accidentally forced herself on the story's great villain. Before she could enjoy even a single day of peace, the lousy System ordered her to force the villain into submission. The lousy System wouldn't let her break character, so she had no choice but to keep going further down the road to ruin. Su Qing followed the novel's four steps for forcing the villain into submission to the letter. Step one: take the villain home and make him serve her tea and water every day. Step two: torment and humiliate him, treating him as a stand-in for the male lead and whipping him with a little riding crop until he was utterly miserable. Step three: when he tried to escape, catch him and lock him in a dark room. Step four: dump him once she was done playing. Su Qing was full of fighting spirit. But just as she completed every step and prepared to bow out, the roles suddenly reversed. How had she become the one being forced into submission? Song Luheng hated being toyed with more than anything. The young lady had not only toyed with his body, but discarded his heart as if it were worthless. And yet, that wasn't even what he resented most.