I'm gonna class this as 'other books' because it's not in the Litrpg genre. I was doing that thing we writers do.... and look what someone (no names) wrote up for us! http://tvtropes.org/pmwiki/pmwiki.php/Literature/TheSecretKing and I got sucked into looking at that and all the other tropes.... lmao
I found that site some years ago. Someone mentioned in a post "Chekhov's Gun". Now the first thing I thought was, "What does Star Trek and Pavel Chekhov have to do with a play?". Found the TV Tropes site to explain it....Then the sun rose and I had 16 tabs open to different trope pages. I felt like Jack Skellington singing,"What's this!".
Tvtropes is awesome. Since I first found it, I've lost at least a full month of my life to that site.