Wait, I’ll Change The Ending

I possessed the body of Ronnie Chaliganne, the villain of the popular manhwa . 5 years before the manhwa started. What is this? How come my favorite character is right in front of me? I heard that fan’s can be lucky. But this is absolutely the best! Since I’m not sure when I would return back, I decided to do my own thing and change the original work. I wasn’t aware that what I’m doing is affecting the whole story itself. “Hey, you’ve been twisting the story in a very strange way, haven’t you?” Five years later, a mysterious wizard came and suddenly blamed me. So he sent me here and now he’s giving me a chance to change the ending? And the remaining time for me is one year, and after a ...