I recommend "I Only Run Instance Dungeons and Don't Fall In Love", a novel about a mysterious detective and a wonderful world. The male protagonist's surname is Gong, and the female protagonist's surname is Ning. The female protagonist, Gong Jiayin, was the main character of the game space, while the male protagonist, Ning Qingkuang, was the female protagonist's sidekick. The two of them had transmigrated into the game world to clear dungeons. Later, the female protagonist was trapped in a room. The male protagonist came to save her but imprisoned her. I hope you like this fairy's recommendation. Muah ~😗