She really thought it was too. She could just imagine what they, as in the Devils as a whole, could do with something like that in their possession. With that single ring, they could gather all the power they would ever need to protect themselves and make sure the Great War never broke out again! Still something bugged her so she asked, "How did you know that boy had a Sacred Gear? Until you took it out of him I had no idea he had one and he seemed really weak so I doubt it was awakened within him."
Junichiro nodded in agreement, "It wasn't awakened. As for how... I'm not telling. Suffice to say, I knew."
Rias grumbled but assumed he had some way to tell if someone had a Sacred Gear or not, "Fine. But why take a Twice Critical? It's not the worst Sacred Gear ever, but it's also not all that great either. You'd need to be really strong to get the best use out of it."
Junichiro lips curled into a wide smirk, "Because that wasn't a Twice Critical, it was the Boosted Gear."
It took everything he had not to laugh as he watched Rias's face go completely slack as her mind shut down at the implications of those few words. He'd successfully stolen one of the twelve most powerful Sacred Gears in existence and she simply didn't know how to process that fact.
It took a few moments for Rias to gather her wits about her. She gently shook her head, crimson hair waving gently, "Okay. So. Let me see if I understand right. You're one of the most sought after people in existence and you are in possession of one of the most powerful Sacred Gears in existence?"
Junichiro nodded with a bright smile, "Yup! I don't plan to bind the Boosted Gear to myself quite yet though. If I did, I'm relatively certain you would be incapable of reincarnating me, should I decide to join your peerage."
Rias nodded in agreement. She wasn't entirely certain what it would take to reincarnate Junichiro as things currently stood. While he was not stronger than her, the process took into account potential and she felt that Junichiro had a lot of potential. If her Knight or Rook pieces wouldn't work, she suspected it would take at least six Pawns to reincarnate him, possibly all eight.
Given what she would get in return, she was more than willing to make that trade! Sure it would drastically limit the size her peerage to grow to, but it would be worth it to have 'The Artificer' and the Red Dragon Emperor combined into a single person in her peerage.
Honestly, just the thought of it sent a thrill tingling down her spine. Her pupils dilated slightly as her breathing became a little heavier. As a Devil, a pure blooded one even, she was highly attracted to power in any form and pure power was sitting across from her.
While he had never utilized it, she knew that Junichiro had political power if he ever chose to leverage his skills toward that end. A trinket here, a small item there, and he would have politicians dancing to his tune. Then there was physical and magical power. While he didn't have either in abundance, at the moment, once he became a Devil both would grow quickly. Add in the Boosted Gear and he could easily, with time and effort, become even more powerful than her brother.
In history there had been many powerful holders of the Boosted Gear, but all of them had been humans. Even with the miracles that were Sacred Gears, there was still a limit to how strong a human could get. Those limits were exceedingly high, but they existed. Devils simply had significantly higher limits than humans. If Junichiro, as a Devil, was to bind the Boosted Gear to himself, he'd likely be able to take it to heights that far exceeded any of the previous wielders of the Sacred Gear.
Rias not-so-subtly rubbed her thighs together as she gazed at Junichiro with a slightly glazed over look, "I really really want you to join my peerage now. Is there anything I can do to help you join me faster?"
The breathy way Rias said 'anything' sent a shiver down Junichiro's spine and instantly filled his teenage mind with the desire to see Rias without her clothing on. He'd seen her rubbing her thighs together and had a guess that she was aroused, but hearing that tone of voice from her? Now he was the one adjusting the way he was sitting to make more room for himself.
That was one thing he actually hated about his current life. The absolute lack of control he had over the physical responses of his body to outside stimuli. Rampaging hormones were no joke!
Still, no matter how much his hormone filled brain was demanding he try at least something with Rias, he held himself back. He was relatively certain that there was some sort of monitoring magic on Rias to prevent her from losing her virginity, if she seriously tried to. His reasons for suspecting that? The way Grayfia appeared in Issei's bedroom when Rias was seriously trying to get him to deflower her to prevent her marriage to Riser.
Unless Grayfia, or others, were spying on Rias one hundred percent of the time day and night and tracking her every single move, as well as her peerage members, then magic was the most likely explanation. It's not like it would even be that hard to make an intent based spell for that sort of thing. Hell, he could probably design something to to detect the intent and fire off a warning beacon in a couple of hours. It seemed very likely that the Devils would have designed a spell like that a long time ago to protect the chastity of their daughters so they would fetch a higher price in marriage negotiations.