The thorns didn't seem to stick too deep, and I was able to remove them to some extent just by wiping them off with my hand.
After carefully ascertaining whether there was anything left in the equipment gap, everyone drank the antidote and recovery water just in case.
Fortunately, everyone in the fish dungeon was equipped with a shield, so they could cover their faces, and it didn't hit their eyes, so I was saved. If my eyes are damaged, I won't be able to recover immediately with just the antidote and healing water.
"As expected, this is bad... If it's a tentacle, you can burn it with fire magic, right? After all, it has poisonous thorns, so it's not suitable for eating."
For now, I confirm with Toru that the ban on fire magic has been lifted. I thought about severing the tentacle with Kamaitachi, but I couldn't beat the thorn. The best thing to do is burn it.