He believed that too. Mittelt had no doubt told Azazel of his desire to join one of the two heiresses coming to Kuoh. Yet, Azazel hadn't said a thing to him about it. He hadn't even tried to subtly increase the offers to join the Grigori. He suspected Azazel approved of him joining one of the peerages as it might help play into his plans for peace. While Junichiro might not enjoy being used for other peoples ends, in this case he fully supported Azazel's push for peace. If him joining Rias would help with that goal, he didn't mind being used just a tiny bit by Azazel.
Besides that, Junichiro liked to think of himself as someone who keeps his word. Azazel and the Grigori were the front for his activities as 'The Artificer' and would remain so even after he joined Rias. More practically, Azazel had more contacts and was more neutral to the other supernatural factions allowing Junichiro's products to sell to just about everyone. Rias, despite her family connections, wouldn't be as well positioned to sell his products.
He also worried about the political shit-stains within Devil society trying to get their hands on himself and force him to work for them. It's why he would be paying strict attention to every single word in the contract Rias would be presenting him. He'd make her rewrite the whole thing a thousand times to get it right, if necessary.
Rias studied Junichiro and, seeing no obvious signs of deception, asked, "Are you certain it will be alright? We can't risk a run in with the Grigori. If things were to get out of hand it could easily re-spark the war."
Junichiro nodded, "It'll be fine. Like I said, as long as I explain properly, there will be no problems from the Grigori."
Rias continued to study him for a bit before she nodded, "Alright. We can stop here and just take some time to get to know each other. For now, I'll explain our activities here in Kuoh that you would be expected to take part in."
After the questions were over and the conversation finished, everyone went about their, currently, usual jobs. Kiba, Koneko, and Akeno all grabbed boxes of fliers and left to different places to distribute them to people on the streets. Meanwhile, Rias was left in the room and forced to do a large amount of paperwork. Due to the territory not having someone actively taking care of it for so long, on top of the changes coming to Kuoh Academy, she had a lot of things to go over. He wasn't too surprised to learn that Rias only had part of the paperwork with Sona having the rest. Sona always was the more... bureaucratic of the pair. He was certain she loved all the paperwork.
None of that appealed to Junichiro though so he excused himself and made his way home for the day. A tentative schedule had been laid out. During the week he would come to the school for the little informational sessions before everyone went on to their business, be that fliers or clients. On the weekends he would work one-on-one with a member of the peerage and see if he could offer them some advice or just to spar with them and provide experience.
Junichiro walked through the gates of Kuoh Academy a while after Saturday club activities had ended for the day. He drew some attention from the few remaining students of the still all female student body but no one said anything. Why would they when Junichiro walked through the place with confidence in what he was doing and where he was going. If he'd been acting sketchy he would have drawn even more attention, all of it negative. Acting like he was supposed to be there made the people looking at him believe he was supposed to be there.
It didn't hurt that he was a little excited to be there either. Today was the first day he would be doing some one on one training with a member of the peerage and Kiba was up first. It had been decided he would go first for a few reasons. The biggest reason was their shared Sacred Gear and Junichiro's clear superiority in its use. The second, slightly lesser, reason was to see how he behaved as a teacher.
Neither Rias nor Akeno would admit it aloud, but they were slightly worried about how Junichiro might behave with them in private. It wasn't a serious fear or anything deep but a not unexpected fear of being around a virtual stranger that you know is stronger than you are. In their world that meant he was, technically, superior to them despite the power they had a Devils. Though Rias believed she could beat Junichiro with her Power of Destruction, she'd rather not have to find out if she was right or not.
Junichiro didn't mind either way. He had no plans to do anything nefarious to anyone in the peerage. In fact, he was actually beginning to look forward to joining them. So far they had all acted like he'd expected them to.
Kiba was polite, stoic, and put on the whole 'princely' act he liked to keep up as a façade against the real world. But, every now and then, Junichiro would see a little hint of the psychotic rage that Kiba kept carefully hidden. Knowing Kiba's past, it wasn't too hard for Junichiro to sympathize with the guy. Still, he'd have to help redirect that rage to the appropriate target in the future.
Koneko was as quiet and damaged as he expected. He had yet to see her show even a single emotion. It was honestly a bit disheartening and depressing to be around the tiny nekoshou. It honestly surprised him how much better and more well adjusted Koneko would be in another two years by the canon story line.
Then there was Akeno. Dear god did he want to take her somewhere and slap the shit out of her. Even if the original author somewhere in the multiverse was to be blamed, she was a shit character. He could understand if her original character in the books hadn't been fully fleshed out and things were just tacked on in future novels, but in this world that would just be a lame excuse.
As far as he could tell, Akeno had lived the life he expected. When she found out Mittelt, the girlfriend he still hadn't broken up with yet, was a Fallen Angel, she lost her shit. The sheer rage she displayed was astonishing and just made him want to slap the hell out of her even harder. Once he, eventually, weaseled her life story out of her, he planned to do just that!