The lounge itself is a lot less underwhelming, though.
It's a very large room, with enough space for hundreds of people, split into numerous more self-contained spaces with chairs and tables and bookshelves. Despite being just the "rank 0" lounge, there are actually very many powerful adventurers there, the kinds that would survive with a few scratches if the entire building fell down on them and who therefore are not at all soft targets. And they are... a very colourful bunch.
Rather literally. They don't dress normal. They don't even pretend they're normal. They wear layers upon layers of enchantments and it is surreal.
There's a person over there covered from head to toe in black metal armour that must be three times their weight with a circular halo of red light hovering above their head; there's a wizard sitting cross-legged in the air, robes swishing in nonexistent wind, three orbs of fire lazily circling around him above his head, having a thoughtful conversation with a woman in oiled leathers sitting atop a blue-and-white wolf bigger than a horse; there is a man wearing long white trousers, no shoes and no shirt, bandages wrapped around his knuckles, built like a house with dozens upon dozens of scars covering his skin, eyes glowing faintly; there's a woman and a man, both green-haired, both with butterfly-like wings attached to their backs, both entirely nude except for body paint and a ton of jewellery (piercings, bracelets, anklets, necklaces, rings), having a very animated argument with a person in a long pink kimono wearing a blindfold with Amatsu ideograms painted onto it, their lower face ashy white and their lips coal black, who seems to be able to talk without moving their mouth; there's a man that is wearing entirely normal trousers and an entirely normal shirt open to his navel with a katana attached to his belt, reading a book, and everyone is giving him a wide berth.
And amongst all of them are the newbies, the young adventurers with no experience, looking by comparison drab and normal and unassuming. Some of them have awestruck looks on their faces, some look like they've been here a while and are getting used to all of this, some look businesslike and unflappable, some look terrified. And some are even chatting to the veterans, undaunted, or perhaps daunted but working past it. Veterans are, after all, a great source of advice, and if they didn't want to be bothered by novices they wouldn't be in this particular lounge.