Doesn't this have exactly as much world building as it needs? I'd have also wished for more meaninful female character contribution, but honestly it almost feels like the original author didn't want even this much, but an editor told him there has to be some for the sales, and so something was quickly tacked on. At the end of the day, this is clearly supposed to be a solo action story (the summoned creatures being treated as the MC's personal power), so it conflicts with having any meaningful other characters.
I don't see, at all, how he would suck on his own. He has been doing group raids due to technicalities. There's no way he would get the right to solo dungeons worth anything.
I wasn't aware of time dilation. Isn't it the same as outside? I don't really remember what they mentioned, but the ice dungeon felt more like a couple of days.
Seems like it. Everyone aside from Jinwoo get a certain level of power and that's it. The only thing they can do is the train to use that power better, learn tactics, and such. It would have been kind of unfortunate to be an old man to begin with when it all started, but that's just how it must have been when random people got powers. Maybe there were some so old they couldn't do anyhing any more.
The kid believes he has it figured out. I doubt he could attract high-ranking hunters if they see through the whole Jinwoo situation and look at the guild without Jinwoo in the picture. But maybe that's not even the goal? Maybe the dude is happy with mid level hunters and lower ranking dungeons, generally speaking, with Jinwoo doing whatever he wants in the meantime.
Miners would wait outside of the dungeon, to be ready to enter once the fighter hunters have cleared the dungeon, aside from the boss room (because that would close the gate). Jinwoo needed hunters to just hang around due to technicalities, as a dungeon needs a team to clear, according to the rules, but he wants to do it alone. In such a case if just having the rest of the hunters idling in front of the gate fulfills the requirements, maybe he doesn't care. Hunter association might wonder about it, but if it's okay according to the letter of the laws, who can do anything about it? Maybe just having the names and hunters sitting at home doesn't satisfy the demands?
If you ask me, it felt more like he wanted something to do while waiting for the S-rank announcement. There was the orb thing, but there probably wasn't a single viewer of this show that would want him to sell it in the first place.