Why is there need to be this annoying type of character in almost every fantasy manga/LN? Can the author at least make the rivalry feels less annoying? I don't know, but this interesting story is ruined the moment author decided to introduce Berry. It's just a waste.
On the other note, that spiral staircase is really gives me acrophobia. I'll definitely not dive into that dungeon.
He's just an old man who keeps retiring and coming back