Great read so far. Story is developing nicely, mc has hardships to face that were quite the surprise, to say the least. side characters are also a breath of fresh air. they feel like individuals, not like created from the same template. the antagonists vary and are not just the same persona in different skins. grammar is great, not perfect, "errors" far and few between. and those "erorrs" are more word choices that sound strange to me. but then again, i'm not an native speaker.
to sum up, i really enjoy the Imps rise to greatness and the authors ability to tell a compelling story.
p.s. 1 chapter/day is torture. you're writing about demons. no need to become one.