Mistaking the Male Villain for the Heroine

Cheng Xun transmigrates into an unfamiliar novel with a system that promises her the world—if she just follows the female lead. Simple enough, right? Wrong. The "heroine" she's been trailing is actually a cross-dressing male villain so convincing that Cheng Xun finds herself blushing at every turn. By the time she realizes her mistake, they're practically inseparable. Years later, when she's one step away from sharing his bed, it's far too late for regrets. What's a girl to do when reasoning fails? Wash up and accept her fate, apparently.