When Our Contract Ended, I Became My Ex-Girlfriend's Brother-in-Law

Chen Chengyi spent three years as a stand-in lover, enduring humiliation and abuse just to pay for his mother’s medical bills. The night their contract expired, he decisively walked away from it all. Before long, he became a personal bodyguard earning a hundred thousand a month from a rich heiress. When Chen Chengyi’s relationship with the heiress came to light, his ex-girlfriend lost it. “What makes you think you deserve to be with her?!” Chen Chengyi slipped an arm around the woman beside him. “The heiress picked me herself.”