I Was Transported into the Book I Wrote

I wrote an absurdly long fantasy novel.

The male lead in the book is a domineering chosen one.

The female lead is a Mary Sue.

The male supporting character is the fan favorite.

The female supporting character is a dark, obsessive beauty.

The villain is a tragic beauty, strong yet doomed.

The extras... All right, I’ve been transmigrated into the book as an extra...

Then the Plot-Twisting System took me hostage. It wants me to become the protagonist and take on the heavens, the earth, and even thin air...

Being an author is so hard!

The main story is written in third person, so please ignore the nonsense in this blurb!