What's with that first convo between "Name A" and the protag?
It sounds really artificial, like the dev is just talking to himself. Also, namaah just goes from 'I could disintegrate you in an instance' and 'That overconfidence will get you killed someday' to 'please sir, I'm not finished yet!'. Seems a little weird for a proud demon.
The dude also says not to treat him like a kid and/or moron as a response to her trying to explain the terms of the contract, does he think smart adults just decide whether they're going to sign something based on whim?
I assume it's because of the maledom option but he seems like such an arrogant ass. He keeps assuming random shit like that he's a very rare option from a comment that could easily pertain to the apparently rather small male population.
He assumes it's extremely important business because a demon showed up, not a succubus. I didn't know he was a demonologist but apparently he can tell a succubus must be much less powerfull and get used for busywork from namaah not appreciating him calling her the demon equivalent of a hooker.
It just seems weird that the woman who has threatened to kill this dipshit just suddenly decides that giving up her everything is a good idea.