A desperate need for cash leads to an unexpected opportunity: become a game tester. The job seems simple enough—guide the male and female leads toward their destined romance and collect the paycheck. Easy money, right? But nothing goes according to plan. The game proves far more complex than anticipated, and a mysterious hidden objective emerges, forcing an unwelcome revelation: the tester must also achieve their own happy ending. As the lines between game and reality blur, navigating the Devilish Duke's dangerous affections becomes the ultimate challenge.