I Became the Villain's Fiancè!?

I was just an ordinary ,unsuccesful novelist and a bastard on the other side.. I only live quitely and dont appear in front of their eyes so...Why am i beaten to death!!? I thought im going to finally rest in peace but... “you either complete the story and come back to your world , or be my mesiah” i transmigrated in the novel i created when i was 16..oh sh*t...Really!?what do you mean come back!?I was beaten to death there and you want me to come back!? The goddess of moon replied“Then be my mesiah and change the story” I have no choice...“okay i will be your mesiah”... Now what to do....And what the hell is a mesiah..Nevermind i need to change the flow of this story first because i will die for the Male lead in the end.. “Sa..saintess im sorry for the rumors”The male lead apoligize in a embrassed voice and voice.."Dont worry your majesty i dont believe baseless rumors,and i also have a fiance.."i suddenly utter that word even though i dont have one just to avoid this Male lead... “Re..really?c..can i see him?we need to announce it to stop the rumors”The emperor replied in a disappointed tone. "Actually i..."i can't think of a reason what to say to him since i dont really have a fiance and suddenly a unknown man stood in my back and said “what are you doing here my fiance?”..Huh????....the man who just talk is the grand duke of the empire and the greatest Villain of my novel..wait..now is not the time for that..i need to escape from that annoying man first..I think his name carefully to call him by that so that it will sound intimate..“oh my~khalil what are yoy doing here”..the Duke eyes widened as if it was this first time someone called him... “i..i took a stroll outside and i see you so i went here”...“i..i will go inside”the emperor who suddenly feel the atmosphere finally left. "Speak whats your motive?"i suddenly unsheated a sword and point it in his neck.. “whats wrong with you my fiancé?,a moment you're calling me khalil intimately~”.“shut up,whos your fiancé!? ” then he replied“Me?”...what a shameless man i suddenly want to slit his throat right now..while i was lost in thought he suddenly said a words that made me shock“arent you miss pioneer?”.Pioneer was the name given to me as a mesiah.."how did you know...?".“its a secret”he then winked at me.He leaned on me and whisper on my ear“i'll see you next time my fiance~”..