Entering the Emiya residence, the faint echo of an infuriated Kiritsugu yelling at someone greeted Iihito.

Looking towards Shirou, Iihito raised a brow. “So… Anyone you know who’d infuriate your pops to that point? He doesn’t seem like the type of person who’d lose his cool all that often.”

Shirou felt sweat drop from the back of his neck, unsure what to say.

“YOU SHOULD NOT BE INTERACTING WITH THE TARGET IN THE FIRST PLACE. MEETING YOUR TARGET SHOULD ONLY BE DONE ONCE YOU KNOW THE PERSON! OTHERWISE YOU RISK EXPOSING YOURSELF AND COMPROMISING THE ENTIRE OPERATION!”

Listening in by the table as she took notes for a profile on Kiritsugu, Aiko nodded eagerly. "He really knows his shit."

“I CAN UNDERSTAND NOT BEING ABLE TO COMPREHEND MOST 21ST-CENTURY GADGETS, HOWEVER, SOME OF THESE GADGETS WERE INVENTED FOR A REASON! YOU DO NOT HAVE TO BE NEAR YOUR TARGET TO LISTEN IN ON WHAT THEY ARE CONVERSING.”

Materializing a capsaicin spray in her hand, Aiko sprayed it on her rice ball and began to eat it. "Om nom."

Seeing Shirou’s eye twitch, Iihito decided it’ll be better to ask Aiko a question than to stand around and do nothing. “So… Mind telling us what’s going on?”

“WHEN YOU ARE IN A SITUATION WHERE YOU HAVE TO INTERACT WITH YOUR TARGET, YOU SHOULD NEVER ONLY HAVE ONE PLAN. ESPECIALLY A PLAN YOU MADE UP ON THE SPOT. ALWAYS ASSUME YOUR PLAN COULD GO WRONG AND PLAN AROUND THAT SHOULD IT HAPPEN!”

Aiko gave a nonchalant shrug as she finished chewing. "Kerry is a sensei now, I guess. Raynell and I dragged in an incompetent spy."

“I’ll go talk to him,” Shirou said before heading toward the source of the yelling. Iihito followed shortly after, not willing to entertain the idea of asking Aiko why she’d use pepper spray on a rice ball.

Opening the door, they saw the strange sight of Kiritsugu rubbing his temples in the direction of a blonde woman in a blue business suit. The woman in question took notes with a trembling hand and incessant sweating.

Shirou decided to chime in. “Am I… Interrupting something?”

Looking towards his adopted son, Kiritsugu sighed. “No, I’m just giving this one a lecture as to how to conduct basic espionage. I cannot risk someone who was THIS naive walking around in public exposing the magus world, the magus would eat her alive.”

Shirou nodded. “Ah, you want something to drink?”

“Scotch, and bring in Raynell so he can remove my drunken state once I’m done. I cannot do this sober.” Shirou left to grab the drink.

Gabriel brought her legs into her chest after she finished writing in her notebook. “I was wrong. So, so wrong. Stupid. Stupid. Stupid.”

“Sheesh, what did she do to garner this reaction?” Iihito winced. “She can’t be that bad… Right?”

“I don’t want to repeat myself, my voice has gone sore enough as it is.” Kiritsu rested his eyes, which did little to calm his nerves.

Gabriel whined as she buried her head in her legs. “I don’t want to hear about it again. I’m not fit to be a super spy.”

Iihito winced, feeling sorry for the blonde woman. “I mean, if it means anything. Everyone has to start from somewhere, even the best of spies start off as bumbling buffoons when they first start. It’s just that there are severe consequences to spies who get caught so Kiritsugu here is trying to make sure you don’t get caught again. Know thy enemy and know thyself and you shall win a hundred battles you know?”

Iihito felt like she was going nowhere in trying to comfort the woman.

“But I’m their top spy. How do we know anything about our enemies if I am terrible at spying?” 

Kiritsugu glared at Iihito, knowing exactly what she was about to say. “Don’t you dare suggest I help them out. I’m already at my limit with just one of them.”

“Uhh, I know a thing or two about spying. More specifically on computers but I know a thing or two.” Iihito offered.

Gabriel gasped as she looked up, a beaming smile breaking through her gloom. “Really?! Thank you. Thank you! THANK YOU!!”

“Just… Don’t meet up here next time, I think Kiritsugu needs a break from you. No offense.