"All I can tell you is that you wouldn't like it very much."
'W-what is this!? What did he do!?' All of them started panicking and Yuuto was able to take out his sword, but that's all he can do as he can't move from his position. He's doing his best just to keep standing up.
Kisuke only maintained the pressure for a few seconds and let them go, 'They'll probably take my warning seriously now.'
After he lets them go, all of them were panting hard and cold sweat drenched their backs.
Issei and Asia were confused when they all went quiet for a few seconds before panting hard and sweating bullets, "Buchou!? Akeno-san!? Kiba!? What happened to all of you!?"
They didn't answer Issei's question and just continued staring at Kisuke with apparent fear in their eyes.
Saji is also panicking, 'I challenged someone like that!? Just that pressure is enough to make me admit defeat.'
"Of course, there are exceptions. Everyone is not allowed to come without permission except for Koneko-chan, Issei, Asia-chan, Sona-kaichou, and Tsubaki-fukukaichou." Kisuke included Asia and Tsubaki for free access. Asia, because he really likes the innocent and kind her that can't even scheme against her enemies. She's a refreshing and a welcome person for Kisuke and Yoruichi who came from a world full of wars.
Tsubaki is included because she's been a big help for Kisuke and very thankful for her for reigning in the almost uncontrolled Sona. Who knew that the overly serious Student Council President is such a child that hates losing. How much she hates losing? It's to the point that she completely ignored the rumors around and just kept looking for Kisuke if she has free time. And why not lose on purpose? Kisuke pride won't allow it. If not for Tsubaki's periodic reminder of Sona's schedule, Sona would have another all-nighter with Kisuke. Tsubaki became one of the regular guests of Urahara Household, mostly to pick up Sona.
"Alright, I already said what I want. I'll be taking my leave now for real. Have a good day.~" Kisuke, with Yoruichi on his head, turned around disappeared among the foliage with no one stopping him. Nobody spoke as they are still trying to process what just happened and how can Kisuke pressure them like that. Even the three who are not affected by the pressure stayed silent because of the heavy mood in the air.
The silence was broken by the new arrivals, "What are you all doing here? And Saji, Ruruko, what are you doing on the ground? Stand up. You're dirtying your uniforms."
The newcomers were Sona and Tsubaki who came from the opposite direction where Kisuke left.
Rias woke up from her stupor and turned around, "S-Sona..."
"Hmmm? Rias, what's wrong? You don't look too good." Sona commented on her appearance. After some more inspection, Sona and Tsubaki both noticed that all of them don't look good and like they just saw something terrifying, except for the three. Issei and Asia are still confused about why are they all making that face and Koneko is sighing putting her palm on her head.
"Rias, tell me everything happened." Sona approached Rias with Tsubaki behind and fixed her glasses putting on a very serious expression, 'Just what happened to them?'
Rias took a deep breath and calmed herself, shaking off the lingering feeling of fear. She starts telling Sona everything from the moment Saji challenged Kisuke to a duel until Kisuke pressuring and warning them before taking his leave just now. She also told Sona her attempt to trick Kisuke with the bet.
"Haahhh....." Sona held her head and let out a large sigh, "Saji, I'll be talking to you alone later. All of you, return to the StuCo room for now. I'll be there after I talk more with Rias. And Momo, Ruruko, you'll be coming with me and Tsubaki later to Kisuke-kun's place."
"...Yes, Buchou..." They're still out of it but they followed her instruction and left first. Ruruko helped to Saji to walk as he's still feeling weak all over. But before he left, He looked at Sona and clenched his fist.
Seeing them left, Sona urges Rias to continue.
"Koneko, can you tell us what magic he used earlier? It seems that you also know how to use it." Rias faced Koneko who is already waiting for her questioning.
"It's a technique that utilizes your own aura to pressure your enemies," Koneko explained briefly.
"Technique that utilizes aura? Senjutsu?" Akeno asks in shock.
"A human that trains in Senjutsu?" Rias muttered.
"Buchou, is there something wrong with human training in Senjutsu?" Yuuto asks as he wants to train in it too. He's now a reincarnated Devil but he's a former human too. He wanted to know what's wrong for a human to learn it.
"I don't know much, but Senjutsu is different from magic and sorcery with the biggest difference is that it stresses the importance of chakra, their aura, the great original power that flows in ones' spirit, e.i. their life-force and turning it into a constant current.
"Senjutsu is a power that is similar yet different from the magic of Devils and the light power of Angels. Despite it being incapable of matching the direct destructive power of magic or light, Senjutsu makes use of the unknown parts hidden in plants, animals, and people. For example, if one learned Senjutsu, it is stated that they excel at reading the flow of someone's aura, thus letting them grasp their movements from a far distance to a certain degree.
"Senjutsu, however, has a fatal flaw, as while it lets the user read and handle spirit power, it could also take in the malice and ill will that flows in the world therefore if an amateur used it in an incorrect manner, then the malice will end up corrupting the user.
"All those you can use and practice Senjutsu has to be very close to nature and can meditate for long periods of time. Humans aren't known for those traits and it's easier for them to use Magic. Koneko can naturally use Senjutsu because of her lineage as a Nekomata." Rias ended her long explanation.
Yuuto thought that he wanted to try learning it and see what he could get out of it.
Sona didn't speak but her mind is running for all sorts of possibilities, 'Senjutsu... Although I don't know his real fighting ability, if he can really use Senjutsu well, he can contend against adult Middle-Class Devils and not lose... But there should be more than that as he caught the attention of Ophis... Someone who forces change on others... I wonder what that means.'
"Wait, Rias. There's something more important than that." Akeno interrupted them and asks Koneko, "Koneko-chan, you can already use Senjutsu?"
"Yes," Koneko answered without hesitation and simultaneously reverting to her nekomata form with a pair of white cat ears and two white tails.
"What?" "Cat ears!" Asia and Issei shouted at the same time.
"...You already got over your trauma?" Rias was dumbfounded yet again. She didn't know that the servant that's always with her already surmounted her fear of her origins and is freely using it, 'What did that guy do?'
"How can you... Does it have something to do with that guy?" Akeno asks Koneko with a slightly agitated voice. She's also someone like Koneko, struggling with her identity and kept denying her other half. Even though she didn't want to acknowledge her own origin, she also wants to know what changed Koneko's mind.