アルヴ・レズル its a light novel that was animated as part of anime mirai the anime versión was kind of intriging and cool so it makes me wonder the following:

is the light novel so BAD that no translation group care about it? if so whats the diference between the anime versión and the light novel?.

This post in NO Way wants someone to translate it i just want to know (in case someone read it) if the anime guys that worked in it changed many stuff to make it look appealing.