Not-So an Extra

Summary:

Suddenly being thrown into the world of the novel and possessing a pretty much fucked up character made him have no choice but to continue his life as a new identity.
And just like any sane person that transmigrated into a book, of course, he would destroy every red flag that stood in his way.
Yet, unbeknownst to him, every single thing he did was just wrecking the storyline more and even more; to the point that the plot had become utterly screwed, thanks to him.