For the Happy Ending of the Tragic Novel

Story:

Read manhwa For the Happy Ending of the Tragic Novel / 피폐물의 해피엔딩을 위하여 ‘I’ was possessed in [The Miracle of Dawn], a bad ending novel in which the deplorable male leads do whatever they can to possess the priestess ‘Bell’. I think I was reincarnated as Rosiana, an obstacle that hinders the main character’s happiness. “Maybe I’ll be able to change the ending of this novel?”