Unexpectedly, the 4th floor is actually a full floor safe zone. Upon reaching stepping off the stairs, something also unexpected happened, they retracted. The stairs you just stepped off of, start moving backwards, disappearing into the wall. Now you understand why those who entered and didn't die, still haven't exited yet. They are stuck here.
Turning back around, you are met with more than a few gazes, as several people seemed to have noticed you and have already come over to investigate. It isn't a pretty sight. Many of them are either looking scared or hostile towards you too. But luckily this floor is a safe zone, so they can't actually attack you.
You realize what is going on and quickly try to dispell the misunderstanding. "I am not a dungeon monster by the way, so stop glaring at me." You say. You do not mean to, but you say it in a way that sounds a lot more frustrated than you are intending. So it doesn't do much to help your situation.
Then a man steps forward who is in full armor while holding his shield towards you. "Bullshit! Clearly you are a monster. Have you ever seen a human with wings or pointed ears before?"
While you admit that he does have a solid point, you have an explination for it. However, you also have an even better counter argument. "Have you ever seen a monster enter a safe zone before?"
The man can't give an answer right away, and grumbles to himself. Before he can answer, someone else steps forward. She is about your age, though unlike the man, who looks to be a tanker for his party, she seems like she fits into more of an off-tank role, still a main front liner, but can likely deal more damage with her spear and lighter armor than the man beside her with his sword, shield, and full plate mail. She likely has a kind of similar fighting style concept to yours. One that focuses more on the damage output while mostly dodging or perrying attacks, rather than simply tanking them.
This is where the second misunderstanding happens. The girl stops the man with the shield. "Stop trying to pick on a girl who just managed to get here by herself. Her argument is a lot more logically sound than yours is anyways."
You notice that the others seem to also calm down a bit too. The girl then approaches you. "That being said, what are you?"
"I am a human. But I look like this due to getting injured when I fought the 3rd floor boss." You say. However this doesn't convince her much.
The girl looks a bit confused. "So you got hurt while fighting a bunch of goblins and the goblin captain, then... what? Suddenly just grew wings and a tail?"
Now you are confused. "Goblins? No... wait, did you not fight a succubus for the third floor boss?"
"No... we fought a bunch of goblins. Why? Did you?"
"Yeah, and she nearly killed me too. But I also managed to figure out the trick to this dungeon because of it."
"Trick? And when you say that you almost died, do you mean that she tried strangling you or something? Because if I ever have to face up against her, it would be good to know how she tries to kill me."
"Not at all, she uses her nails. They are sharp as hell. She cut off my right arm and scraped my chest pretty good too."
Now the girl seems to be getting annoyed. She points down at your right side. "Uh huh, right. So then what is that? Your other right arm?"
You then go on to explain everything, and pulling out your severed arm from your inventory really helped get the point across too. The girl seemed pretty uncomfortable with the whole idea, but didn't try and dispute your claim either. You are the first person to discover this secret dungeon mechanic too.
You also find out that her name is Zara, and she is the leader of a team of 4. There use to be 5 of them though. Their 5th died due to bloodloss from what normally would have been considered a minor injury. But because of this, you are offered to fill the spot on their team, which after some thought, you accept. This is because you nearly died just a little while ago due to a lack of combat options besides having a head to head confrontation with whatever you are facing.
You are then brought over to meet the rest of her team. The 3 others are waiting for her to return by their campsite. There are 2 damage dealers, Keith the mage, and Hannah the archer, and Grella, the support. Usually, she is also the parties healer, but due to the dungeon limitations on healing, she is restricted to only providing shields, buffs, debuffs, and some crowd control.
Their fallen member was their main vanguard. He wasn't really a designated tank, but he played similar to the role due to his ability to manage monster's aggro. And he primarily used his fists to fight too. So you actually fill his shoes quite well now with your new combat style.
You all decide that after you rest for a day, the 5 of you will head out to challenge the 5th floor.