Kisuke spent the next half an hour pointing out everyone's mistakes and the way to correct them, except for Asia, Gasper, and the people he didn't actually know, Rossweisse and Bennia.
After stressing out how much of a muscle idiot Xenovia is, Kisuke finally turned his attention to Rossweisse, "This is our third time meeting but I haven't introduced myself yet. It's a pleasure to meet you. I'm Kisuke Urahara."
For some reason, Rossweisse was feeling nervous in front of him, 'Even though I didn't feel like this even in front of Azazel and Sirzechs...' She thought and bowed slightly to him, "Likewise. I'm Rossweisse. A Rook under Rias Gremory and teacher of this academy."
"Ah~ Rossweisse-sensei, is it? I'm a student of the Kuoh Academy, nice to meet you~"
"Eh? You still consider yourself a student? You really don't look like one..." muttered Saji.
Kisuke made a smug expression and rubbed his chin, "Right? I look like a proper store owner~!"
"A destitute store owner," Irina corrected him.
A split second later, something flew over to her and hit her forehead, launching her a few inches into the air, "OOOUCH!!!" Irina started rolling on the ground while screaming in pain and holding her forehead.
Ignoring her, Kisuke continued addressing the dumbfounded Rossweisse, "I know we just met, but mind listening to what I have to say?"
Rossweisse looked at him and nodded with a serious expression, "If it's constructive criticism like they received, I'll gladly accept it. In fact, even if you didn't ask, I would have shamelessly asked for your input."
Kisuke smiled at her and continued, "I haven't seen nor I don't know how you fight in the past, but I can definitely say that you're a prime example of a 'textbook' fighter."
"A 'textbook' fighter?" repeated Rossweisse.
"In other words, you're someone who only knows how to fight in theory. It's obvious that you studied how to use your magic in a battle, but that also makes it awkward watching you. If I were to describe it, you're just like someone who just finished the tutorial of an RPG and is doing basic and obvious attacks on stage one."
Hearing that, Rossweisse sighed, "...I understand... I already knew that, but I didn't expect that it would be that obvious." However, those around her were shaking their heads as they didn't know of that nor it was obvious to them.
"Can you tell me in detail how you easily noticed it?" asked Rossweisse.
"There are many factors but the most obvious one would be the way you use magic." Kisuke then put both of his hands forward and a magic circle appeared in each of them.
"That is... the magic I used earlier." answered Rossweisse, "So you know Norse Magic."
"Ah, nope. Just saw these two earlier."
"...Huh?"
However, Kisuke ignored her confusion and continued, "Anyway, that's beside the point. Do you notice anything in these two magic circles?"
Rossweisse decided to not ask about him learning her magic in a single glance and stared at the two familiar magic circles, "They're normal?"
With that answer, Kisuke figured out Rossweisse's skill level, "Well, yeah. They're normal. Let me change the question instead. Do you remember when you used these two magics in particular and that time's situation?"
Rossweisse thought for a moment and nodded, "Yes. I think I dealt with the situation correctly."
Kisuke grinned at her and replied, "That's the problem. You dealt with the situation 'correctly'."
"...What? If it's correct, then why is it a problem?" Instead of getting angry, Rossweisse became intrigued.
At first, Kisuke intended to stop here and let her think about it, however, seeing her very interested and listening intently without taking any offense in his contradicting of her actions, he decided to continue, "Using these two magics, you were able to deal with ten Magicians and their summoned monsters at once..."
Kisuke then dispelled the two magic circles and conjured another one that Rossweisse used in the previous battle, "But what do you think would happen if you added this magic in between those two?"
"Due to contradicting magic flow, it'd weaken my first defensive magic and I'll be open for strong attacks that will be coming after me later," answered Rossweisse.
"Correct. However, you failed to consider the bigger picture and just focused on the enemies in front of you."
"What do you mean?"
"It would indeed weaken, or even outright dispel your first magic through the magic flow conflicting. However, what do you think will happen to the magic that the Magician is using below you?"
Rossweisse took some time to think over his words before replying, "There should be nothing that could affect it..."
"Wrong. If you strengthen your second spell, it would outright destroy your first spell. However, the resulting explosion of magic power will interrupt his defensive spell and weaken it to a certain degree."
"But that certain degree is already enough for Irina's attack to go through it. Since the Magician was also gathering a fairly large amount of magical power since he trusted his shield, a sudden unexpected attack will disrupt his casting and all of that gathered energy will explode towards his fellow Magicians that were controlling a larger defensive barrier against the power fighter, Quarta-san."
"With a disrupted barrier, Quarta-san's attack would go through their formation, breaking it. Himejima-san would be able to snipe the rest who were gathering magical power for an attack, while the rest of the Student Council would be able to stop the other Magicians from regenerating the barrier while you would be able to clean them up with your third spell."
With a grin, Kisuke took out his fan and put it over his mouth, "With a single spell that you already knew, you could have turned the tide of the battle without Vladi-san's intervention~."
Everyone in the room was dumbfounded, especially Rossweisse who held her head with an unbelieving expression, "...Seriously?"
She walked over to a couch like a zombie and sat down before closing her eyes to simulate what Kisuke described in her mind. Everyone else didn't disturb her and let her think. A few minutes to the sound of Kisuke drinking his tea later, Rossweisse reopened her eyes and muttered, "...Unbelievable. If the timing was right, I could have really changed the flow of that battle if I used that spell... Such a small change brought about a completely different ending."
The first one to react to her words was Bennia, "Amazing! As expected of Boss Hat who works in the shadows!"
"No, no, no~, Bennia-san. I'm just but a normal businessman~"
Standing up while nursing her forehead, Irina retorted, "No normal businessman is perpetually in the red."
A split second later, she flew back again, "Ahhh!!! It's in the same spot!"
This time, no one pitied her as she was really just asking for it. It was very obvious to everyone that being a 'businessman' was Kisuke's reverse scale.
At that moment, Issei suddenly entered the room with a grim expression, "Everyone... Something bad happened."
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Editors:
28th00: Irina really does ask for the bulli, huh? Technical Fighters are scary, but never more so than when they have centuries of experience to perfect the art, being a genius is a requirement for that fighter type though. Giving a genius centuries to do anything makes them terrifying… Phis-chama is still unsupervised, I'm nervous.