After saying goodbye to Kakashi, Kannin returned home and put all of the shopping bags down. Looking at the mountain of cloth in front of him, he decided that the easiest way to take care of it would be a new jutsu. Taking it all outside again, he summoned a whirling mass of water and infused a soap and detergent into it. After a while, the clothes were soggy and clean, at least as clean as he could get them. He dried them with an intense blast of wind chakra.
Folding them would take longer than Kannin liked so he left them in a massive pile on his bed before heading out again, this time for training. He headed to a secluded area in the forest surrounding town, and made sure no one was watching him before starting because today he started his training on the Flying Thunder God jutsu. Minato had entrusted it to him, and though he did look over it before, he'd never tried it out.
The first thing you do for Flying Raijin is create your formula. The formula would be the signpost which would mark where you could teleport. The jutsu was actually quite simple, it was markedly similar to a reverse summoning technique, and Kannin could tell that modifications using Uzumaki sealing techniques would bolster its utility even further.
Minato had optimized his formula to the maximum, offering absolutely instantaneous travel, and while Kannin didn't have the luxury of seeing Senju Tobirama's, he imagined it was scarily efficient was well. That's about where the easy part ended; making the formula wasn't so hard, but everything else about the jutsu was insane.
In it's base form, it essentially required the user be a prodigious sensor-nin, which Kannin wasn't. Thankfully an auxiliary jutsu was supplied to make up for it. The reason you needed to be a sensor was that there was little other way to remember where your formula was, and to remain in connection to the space-time continuum. Minato left a note in the scroll saying that after a few years you shouldn't need the auxiliary jutsu anymore, but he didn't really trust that.
After creating his formula, a squiggly collection of writing, runes, and sealing formulas, Kannin proceeded to paste his formula on a nearby tree. Before he went ahead with the testing, he summoned Kiyo to him to judge how fast he was teleporting. Kannin didn't know if speed was a variable depending on mastery of the technique.
"Fine," Kiyo said with a huff, "but you need to play with me more, I've been neglected these past few weeks. And more sandwiches."
The giant fox wasn't as cute as she imagined, so the begging wasn't so effective, but Kannin loved her anyways and promised as many sandwiches as she could. He ruffled her fur and scratched her ears before going back and testing the jutsu.
"You ready, Kiyo?" He asked
Kiyo lifted a paw as if to salute him and said "Aye Aye, Captain!"
Seeing her enthusiasm, Kannin made the hand seal. Suddenly, his body felt like it was being sucked through a straw--a sensation he had felt those years ago when Minato saved him from the Iwagakure army. When he emerged out on the other end, Kannin stood in the exact same position he entered into it with, before immediately doubling over and throwing up.
When he pulled himself together again, he looked over at Kiyo and asked,
"How'd it look?"
"Well," the fox turned her head, "it looked pretty instantaneous to me. Was the vomiting part intentional?"
"Yes the vomiting part was intent-of course it wasn't" Kannin yapped out, using water release to clean himself up."
'But it looks like I'm on the right track.' Kannin thought, 'I need to work on distance and number of formulas to really make it worthwhile.'
So for the rest of the afternoon Kannin spent his time trying out how far he could teleport with the technique, and he figured out that after about a hundred yards, the odds of him correctly teleporting to the formula was about 50/50, along with a drastically increased chakra cost, though that wasn't the biggest concern given Kannin's reserves.
He also learned that the number of active formulas he could have operational at one time was three. Any more than that and he couldn't keep track of them efficiently enough to teleport between them all; his brain simply couldn't do all the math so fast. He hoped that he would get better with practice, since Minato apparently fought with at least a few dozen active during the war at distances of miles, but maybe that was just a part of Minato's prodigious talent. At the very least, with Kannin's current skills he could try out the Flying Raijin: Slash, but that would have to wait for the next day.
-
"Warai, we need you on this."
"I can't, I just can't" Warai responded with indecision, gripping the back of her chair
"You know it's only going to get worse, Warai," the gruff voice of Uchiha Fugaku. "I'm not asking you to do anything extreme, it's just that we have little to no intel on what's going on in the Hokage's office, or in the Anbu, or with the elders, especially Danzo. It's just a little intel gathering."
"You are asking me to spy on Konoha for you!" Warai said, trying to keep the volume down, "I can't do it! No matter how much you praise my ability or give my parents gifts, I just can't...What would Kannin think if he found out..."
"Kannin?" Fugaku said with some surprise, "That Uzumaki kid I saw you with? You're going to jeopardize the clan over that scrawny kid? We don't even know what he thinks of the clan!" Fugaku said shaking his head, "Not to mention he looks just like one who put us in that position..."
"What?" Warai asked with a hint of genuine curiosity
"You haven't noticed?" Fugaku said, "His hair and face, they look remarkably like Senju Tobirama. Take a look at the Hokage Rock next time you're out, it should click." Fugak paused, and took a seat in front of Warai, "Now, will you or will you not do what I asked?"
Warai rubbed her forehead and muttered a bit before saying, "If I do this, you'll have to give me more than just some money."