2 problems in the next chapter: 1 from previous party (former party leader) and 1 from unknown girl (i think General demon king or dungeon master)
On that it's because it's a taming skill not a mind control skill. Taming skills work by maximizing positive associations to the point they want to fulfill the orders usually.I don't see why being commanded to be absolutely obedient would make you want to be ordered around. It would make you follow orders, but why would it make you want it? Just feels like more forced fetish material.
Seems to me this is also either the author's plan, or the girl's, to force the MC to go to that specific dungeon. I mean, it just so happens that the dungeon where her party disbanded, that was being shut down due to instability, is the only place to reliably get the one item that may or may not undo taming effect.That's a hamfisted development if I've ever seen one... I get that using the domination skill on an attractive woman is part of the power fantasy, but it feels like the author both wasn't willing to fully commit and let the MC be a bad person or come up with a good reason for him to do it.
Instead it's just "Oops, I accidentally made her completely mine!" and every store just so happens to not have the needed item and the party circumstances mean they won't be getting the item anytime soon either even though they could. Ahaha, oops, just have to have a hot slave that insists on calling me master because of how her skill works. Silly world we live in.
Also, maybe it's just a translation thing, but I don't see why being commanded to be absolutely obedient would make you want to be ordered around. It would make you follow orders, but why would it make you want it? Just feels like more forced fetish material.
Of course they wouldn't prepare the item needed to make the test safe ahead of time. Only an idiot is prepared for the obvious consequences of their own actions.