thaetis

Since when does he need to eat them? He's always just used his power to absorb them before...

This makes no sense. If he's so stuck on Kat then why even bother with this harem? He's grown up enough to do all these things but not enough to tell these girls they don't even stand a chance? He's selfish to not even consider them. If he's only going to be with one girl and that girl may not even exist anymore and even if she does it'll probably be a while before he could figure it out then all of the words spent on the romance is just a waste. My main point: If there's literally no point to it (e.g. the harem) then you shouldn't spend so much time writing about it. Either develop it or let it go.

Overall the story is pretty generic but not necessarily bad. It's really the characters that are bad. The MC is supposed to have some sort of pro gamer background but from the start he never acts like that. Somehow he gets instantly dumb then gets a stereotypical snarky Fairy who is supposed to be a guide. The two of them combined are too annoying to continue reading.

I think more context is needed because what does world class actually mean? The same goes for the stats. I can tell almost doubling his stats was a huge jump considering normally you only get 3 stat points per level but how do his stats compare to everyone else? Other than that it's been good so far.

How about a dao of cloning/replication since besides the traits and treasures that has been his biggest help. Imagine his subordinates being able to produce clones as well. He'd still be able to take OP to another level 🤣

Also, the sword said is a grand one but the summoning one is a lesser. That definitely seems backwards as even Noah pointed out so a lesser dao of time should be possible.

I feel like this is selfish and lacking foresight (which I guess should be expected at his age). He mentioned how strong all the demons were so he could have pointed this out and used all those gates to train up more people. He can't fight all the demons if it comes to an all out war...

This makes no sense. He's a summoner but he can't use his summons? They should be judging how well he uses and has raised his summons not just how good he is at combat as an individual.

This whole thing with his sister is really annoying. It's barely believable that MC is the same level as these people who have spent months in game after a few weeks but his sister is somehow already the same level and has such good equipment she can just ignore it?

She really isn't a very good "sister"