After explaining everything, Kairen slowly walked into the house, and Tsunade and the others went inside to cook.
Kairen arrived at the training field behind the house. The shadow clones all turned their eyes toward him and shouted loudly:
"Main body, hurry up and replenish our chakra!"
Kairen nodded. Chakra threads whipped through the air, and he immediately replenished their chakra.
These were all shadow clones studying ninjutsu or weapons. Next time, he planned to give these clones Wood Release to extend their duration even further.
"Ding!"
"Shadow Clone Suit Recorded Successfully, Named Diga!"
Kairen looked toward the far left. He saw a shadow clone wearing a crimson-purple suit, currently performing a Lightning Whip, the power strong enough to draw the attention of the surrounding clones.
Kairen frowned, flashed forward instantly, and kicked the suit apart in one blow.
The clone's memories flowed back into Kairen's mind. After absorbing them, he curled his lip:
"In all these days you only made a suit? I wanted an Ultraman Beam, not just a suit!"
"Boss! Boss! Come look at mine!"
A big upright lizard bumped Kairen with its head.
Kairen turned around and saw clearly what this little monster was.
It was Godzilla — two tiny short arms, a lizard-like tail, and blue-white coral ridges across its back.
This anthropomorphized Godzilla lacked ferocity and instead gained a surprising amount of cuteness.
Kairen asked him:
"Did you develop any moves?"
Godzilla wagged its tail and answered:
"I developed a Wind Release Shockwave — I can use it as Godzilla's atomic breath!"
Godzilla then began performing the ninjutsu. Its two tiny arms pressed together to form seals, but after trying for a long time, he gave up helplessly — his lizard claws were simply too stiff.
Kairen punched him directly and blew him apart.
Godzilla's memories flowed into Kairen's mind, and he immediately mastered the Wind Release ninjutsu Godzilla had developed.
It used the mouth to spit out a powerful blast of wind, like a vacuum sphere in the form of a light beam.
Kairen formed seals with both hands, wind-nature chakra gathering in his chest, growing stronger and stronger.
Then he suddenly unleashed it toward several log-like targets. A blue-white beam shot out, brushing lightly across them — and the hard wooden targets were shredded.
Kairen nodded:
"This one is reliable."
"From now on, it's called Wind Release: Atomic Breath!"
"Ding!"
"Wind Release: Atomic Breath — Ninjutsu Scroll Recorded!"
Kairen's ears twitched. He heard a rumbling track-like sound and looked to the right.
A mighty giant rolled across the training field — a heavy tank the size of a small house.
Kairen's breath tightened.
Tanks were vitally important to modern war. Without a few tanks providing protection around the troops, ground forces could barely claim to be marching at all.
Kairen immediately jumped onto the heavy tank. Revolutionary Kairen, Sasori Kairen, and Gunner Kairen were all testing the tank's performance.
Sasori Kairen was drawing on a sheet of paper. When he saw the main body, he said:
"Main body, this is the Tiger Tank we built. What do you think?"
Kairen inspected the treads here and the cannon there.
Although it was called the WWII German Tiger Tank, it incorporated modern tank structural features, already far beyond the WWII technological framework.
"Not bad! Not bad!"
Kairen smiled with satisfaction, then said to them:
"Tonight, haul it out and let the Shimura Clan have a taste of its power!"
"Understood!"
"Ding!"
"Land Warfare Weapon — Tiger Tank Recorded Successfully!"
Kairen glanced over the shadow clones again. Everyone was diligently carrying out their tasks.
"Whoosh, whoosh…"
Peter Kairen shot webs from one hand, swinging back and forth through the wooden training structures. Doctor Snake had already finished developing his Spider-Style Ninjutsu.
"Ding!"
"Spider-Style Ninjutsu Recorded!"
Kairen walked a few more circles, smiling in satisfaction — and then he heard another sound.
"Ding!"
"Water Release: Thousand Years of Death Recorded!"
Kairen froze.
Water Release Thousand Years of Death? What the hell?
Three to five clones had gathered in a circle. One of them formed seals and then fired a thin water jet from below — instantly piercing through a wooden practice dummy.
He even burst out laughing:
"Hahahaha! THIS is the power of Water Release: Thousand Years of Death!"
The human body had 361 chakra points. Theoretically, any point could release ninjutsu. So it wasn't entirely impossible for a shadow clone to release Water Release from… there.
Kairen shook his head helplessly — then he saw Shizune waving at him.
"Kairen, food is ready! Come eat! Tsunade-sensei even made your favorite abalone!"
Kairen smiled, flickered out of the training field, and entered the house.
Tsunade's cooking was abundant — abalone, tofu, everything except her lying on top of it herself.
Kairen nibbled the tofu Tsunade prepared, savoring it, then released his emotion-sensing ability.
Tsunade showed moderate greed toward him. Shizune and Yūhi Kurenai showed moderate affection.
The two girls kept sneaking glances at Kairen, then glancing at each other, radiating intense fighting intent.
Tsunade chewed on the sweet potato Kairen bought and glanced at him lightly:
"Today, what were you doing outside with that woman named Yakushi Nono?"
Kairen… with another woman?!
Shizune and Kurenai perked their ears, secretly on guard.
Kairen shook his head:
"Nothing. I just wanted to understand her background and see whether she's someone worth trusting."
"Oh…" Tsunade hesitated. In truth, she cared deeply about Kairen and at this moment wished she could tie him to her side so that no woman could even look at him.
After dinner, Tsunade asked Kairen again:
"How's your Water Release training?"
Kairen had obtained Senju Tobirama's secret Water Release scroll that day. Tsunade had seen it and allowed him to learn those ninjutsu.
Kairen patted his chest confidently:
"Training went great! Tsunade, you can try my Water Dragon Gun — it can break your Water Formation Wall in one shot! And Tsunade can also try my Water Dragon Egg Technique!"
Tsunade pinched Kairen's cheek and tugged:
"You brat, I don't even use Water Release ninjutsu!"
"Tsunade, don't you have water nature? Why don't you train in Water-nature ninjutsu? With that much water in your body, wouldn't it go to waste?!"
"I already have my own secret techniques. Training additional ninjutsu is just a waste of energy. Besides, my specialty is medical ninjutsu."
Once a ninja reached the Jōnin level, specialization began.
Some excelled at Fire Release and focused on fire techniques. Some excelled at Water Release and invested heavily in water techniques…
Surpassing other ninjas in a single specialized field — that was the difference between a Special Jōnin and other Jōnin.