I really like this novel it's pure series with no underhanded or politic which we usually see in many novel.It describe clear relation with his friend and most best thing is that it doesn't have harem where one guy fuck 10 girl. I really recommend you this novel if you like friendahip ,superpower, fantasy element and especially no harem.
what I dislike the most from the story is it's slow pace. back then I am around 80s (tournament chapters) and latest release is 140-150s.