[@tsukune]
The point of me bringing up the age group demographic is because a novel with a younger demographic is gonna have less complicated words and a novel with an older demographic is gonna be more complicated with the word choices. Otherwise, yeah, demographic really means nothing. 

[@shylarah]
T = Teen (13 - 15)
OT = Older Teen (16 - 19)


Honestly I think the only light novel I've read more than one chapter of is Eromanga-sensei, and I've only read like 2 or 3 chapters of that.