The Possessed One Hates This Ending!

'''Cheong Do-un was possessed into a novel once again. It was already his third possession. There was only one way to reach the ending: grant the protagonist's wish and receive a heartfelt thank you! [Welcome to <Inisia of Catastrophe>.] As soon as he was possessed, he nearly died from a flying, gleaming blue blade. The one who saved him was none other than Baek Yi-gang, the novel's ultimate mastermind and one of the main characters. "I saved you from near death, and in return, you will have to work for me. Whatever it may be." "Sure." I would come to regret that day, the day I answered so lightly and thoughtlessly.. "Cheong Do-un, let's get married." "No.." "Say yes. Unless you wan...