After the Secret Service Chief Stole My Girlfriend, I Lost My Wife and Daughter

After transmigrating into the tragic novel protagonist You Daqi, he treated his girlfriend with the utmost care, only for her to secretly become the mistress of Zhonghai City's top secretary. She even kept insisting she was the victim, claiming she'd been forced into it because he wouldn't lend money to her older sister. She blamed the whole thing on him, while the secretary even called to taunt him. He could have used his knowledge of the novel's plot to bring the two of them down with ease, but that would be letting them off too lightly. He had to torment them both physically and mentally, until they regretted everything they'd done to him. His girlfriend cared most about her older sister. She was a total doormat who lived to support her sister, and wanted her to have a happy, perfect life. So he'd tear her family apart. The secretary liked stealing his girlfriend? Then he'd give him a taste of his own medicine and let him experience what it was like to have a woman stolen from him. He'd make sure they were disgraced and paid a terrible price. But before breaking up with her, he was going to collect a little interest first.