Shy and afraid.

(Well, I only got a few opinions, but I have ultimately gone with, yes, she will be a permanent addition to the harem.)

"Eh!? Oh come on, out of thousands of Succubi in our dimension, you get me!?" the petite succubus protested as she shrunk away, but couldn't leave the spell circle. "I was hoping my first time being called wouldn't be for another thousand years!"

"Heh, well, I suppose you'll do," Kazuma remarked, rising to his feet.

"Couldn't you just... You know, throw me back, and try again?" she asked him demurely.

"What do you think you look like, a fish?" Kazuma snarked. "No, you're way too pretty to play that card. Besides, these ritual circles take DAYS to set up."

She blushed at that. "Pretty? But I'm not as curvy as most of my brethren!"

"I don't mind a bit of variety, and besides, I know full well that you're what? Four thousand? Five?"

"I'm only three thousand!" she huffed in a momentary bit of annoyance. Even Succubi could be sensitive about their age apparently.

"Fair enough. Now then, I believe you know the drill, I got a contract I want you to sign if you want out of that spell circle anytime within the next century," he replied, pushing a sheet of parchment into the circle.

"...what would be expected of me if I agreed?" she asked nervously after reading the contract, which demanded absolute obedience and loyalty, and having no loopholes she could find.

"Just you assisting me with projects, and relieving my lusts," Kazuma replied.

"...I haven't done anything like that yet though..." she looked away shyly.

"Don't worry, I'll take things slow. I'm not a complete asshole," Kazuma chuckled.

She looked at the contract again, and sighed in resignation, before signing and passing the parchment back. Kazuma took it back and read the name on the contract. "Xylixia huh? That's a nice, exotic name."

She huffed and looked away with another blush. "Can you just open the circle up so we can get started?" the now named Xylixia asked.

"Of course," Kazuma replied as he ended the barrier function of the circle, and took her hand, guiding her over the line as she hesitated to approach.