The same dungeon appeared in Northern Europe recently that was mentioned when they were trapped in so it was probably the same reward. There’s only one person who knows he has the bracelet, the blue haired a rank.
The dungeons that don’t have a boss need a certain amount of monsters beaten for it to close so they use it as a farming ground. For dungeons to break you need to explore or beat them in a certain amount of time or they’ll break and force the monsters out.
I was also confused by his surprise if he saw him prepping 10 min before, maybe he was confused why he was going out so early ? Idk that part is off

Im confused, in chapter 23 how can they know and posted about the golden bracelet from that ex class labyrinth dungeon if mc has it the whole time? Or did the item got appraised first by the association before given back to mc?? But if that's the case, then how come in chapter 34 seonwoo didnt know that mc has that item?
Also in chapter 48 didnt haseong said he'll be clearing dungeons that are near dungeon break? But in chapter 49 the mc said that dungeon is a dungeon with no boss and will just keep on spawing normal monster, like a farming ground so its not a dungeon that'll have a dungeon break soon. And maybe its just a mistranslation but in ch 49 haseong said he saw mc prepping for 10 minutes before entering the dungeon? Then why was he surprised when he saw mc inside the dungeon?