The Extra Can't Escape Manhwa (Uncensored)

Synopsis

This is the world of a run-down novel. As the female protagonist’s younger sister, I cared for the male protagonist in every way possible to prevent his dark deterioration. Fortunately, he was raised properly, and I thought I’d avoided a bad ending… “Haena, I want to sleep with you.” So, not with my sister, but with me? I never intended to be the female protagonist!