Reborn in Novel's Extra as Shadow Monarch

I only have rights on my MC original characters and all the other original characters .Novels extra isn't mine it belongs to original owner and other character's to and the pic isn't mine I only taken it as looks good .
This about a guy who gets chance to reincarnate in novels extra how he is going to become uncrowned king of that world and I don't hate Kim hajin so I not going to do any thing to him.
And I am reader like you who started it because my love for fan fic and I am never going to drop it as I know how irritating it would be so wish me luck cause I need it and i may not release it daily based but it may be monthly or so like i will not drop it