It's really interesting how they fit the mechanics of the game into the story, especially with that last part.
Wizardry games, especially the ones that the Japanese love, have a 6 member limit for a party.
In the games, you almost never encounter another party even if there are a lot of adventurers seeking to explore the dungeon.
In this manga, the dungeon itself is enforcing the rules for a 6 member party, and using some kind of magic to split up parties to stop them from working together.
It's to stop adventurers from forming a large raid party.
The healers healing injured adventurers at the entrance of the dungeon and then going back to the stables to rest is a nod to cheap healing in Wizardry based games.
I'm loving the manga so far.