Third and Fourth also ran toward the enemy from different sides, taking him in a ring. Izao perfectly saw all the enemies' maneuvers and realized that they were all just Genin. He calmed down a bit and planned to deal with them, deep down surprised which of these three worthless Genin could form a technique with power reminiscent of a B-rank technique.
A few seconds later, Ichiro closed the distance with Izao and engaged in close combat. Izao was in shock when he saw his opponent's eyes, and after another exchange of blows, he jumped back and shouted:
"Aren't all Uchiha wiped out? Who are you?!"
Ichiro did not answer and rushed into battle again, virtuously parrying all the enemy's attacks, managing to deliver his own. The opponent's speed did not allow him to find even a fraction of a second for concentration and "spatial strike", so he continued looking for patterns in the enemy's movements, trying to find a gap in his defense.
Third and Fourth arrived ten seconds after the start of the fight and began helping their brother. But their speed was nothing surprising for Izao, so in a few exchanges of blows, he sent both flying, throwing kunai with attached explosive seals after them.
An explosion sounded, and an invisible barrier flickered around the two brothers, which with difficulty but absorbed 90% of the explosive energy, and 10% evenly distributed over their entire body, enhancing their flight. A few seconds later, the two brothers crashed into a large stone and coughed heavily, coming to their senses.
Ichiro did not waste time, and at the moment when Izao sent his two brothers flying, he instantly attacked with a kunai using space, aiming at the heart. But to his regret, Izao dodged at the last moment, and the kunai passed tangentially, tearing his pectoral muscle.
At that very moment, on Kenshin's command, Fifth and Sixth threw shuriken, aiming at the enemy's legs, and both shuriken deeply embedded in Izao's calves, making him cry out in pain.
Kenshin immediately ordered Ichiro to retreat, not wanting to expose his son to danger from the actions of a crazed shinobi who decided to trade his life. He commanded the recovering Third and Fourth to attack the enemy with Katon, and the two sons obeyed, jumping a bit to the sides and shouting:
"Katon: Goukakyuu no Jutsu!" Fifty-centimeter fireballs appeared in front of the two brothers and flew toward the enemy.
Izao panicked strongly, knowing that with wounded legs he could not dodge, and at the last moment formed several seals, shouting:
"Doton: Shoheki!" After the spoken words, two stone slabs 20 centimeters thick rose to his left and right. Izao used almost all his chakra for defense and clung to the last chance, understanding that surviving this night would be incredibly difficult.
The two fireballs at full speed crashed into the stone slabs and broke them in half, destroying themselves. Izao, standing on both sides of the slabs, was buried under multiple fragments and was still alive. But Ichiro intended to fix that.
"Katon: Goukakyuu no Jutsu!" he shouted, standing on a sheer cliff thirty meters above Izao. He poured almost all his chakra into this fireball, which grew to a meter in length and then flew down.
Kenshin, sitting on a nearby tree, expected that at the last moment Izao would make another incredible attempt to survive, but that never happened. The huge fireball at full speed crashed into the pile of stone fragments and immediately baked the unlucky missing-nin alive.
After his death was confirmed, everyone breathed a sigh of relief and headed home, exhaustedly collapsing into their beds.
*****
All of the 147th day, Kenshin with his sons eliminated the consequences of the strangers' attack. They reseeded the potato field, collected blue sage, planting new ones, reinstalled a bunch of damaged snares, and of course removed the bodies of the two missing-nin.
To Kenshin's deepest regret, nothing remained on the bodies that could clarify the situation; even metal coins were melted and literally fused into the charred flesh, depriving the Nakayama family members of any thoughts to properly dig into this.
Aya and Natsumi also expressed a desire to help, but due to late pregnancy terms, Kenshin forbade them to interfere, only smacking each on the lips and stroking their big bellies.
He had a lot of work and new plans that appeared after defeating the strangers. He was going to rebuild the main formation on the entire perimeter so that even random Chunin would not wander into his territory. Regarding Jonin, he was not sure because he had not met any, but after meeting two Chunin last night, he knew that his existing knowledge would allow him to resist shinobi of that level.
Therefore, Kenshin plunged headlong into work, deciding to first draw a small prototype of the needed formation and then quickly install it along the entire perimeter. At the current level of knowledge, the method of accelerated formation application was available to him, so the work should not take more than three days.
For several days, everyone was busy with their affairs, having no time for long rest.
Ichiro, Third, and Fourth continued joint training, improving interaction. The two younger brothers lacked skills, but Ichiro intensively pulled them up to his level so that using the advantage of telepathy, they could defeat stronger opponents without significant losses.
Fifth and Sixth by this time had learned all hand seals and were gradually learning to use the fireball. Ichiro himself had been learning "Katon: Hosenka no Jutsu" for over a week and planned to master this useful technique soon, allowing the release of many small fireballs, not giving the enemy a chance to dodge.
On the 150th day, Kenshin finally finished improving the main formation, just in time when Seventh and Eighth fully matured. He heartily congratulated them on coming of age, gave a fiery motivating speech, wanting to spur them to training, and sent them to the gym, conducting the first training with them.
Even without close combat skills, Seventh and Eighth fought their father on equal terms and even pressed him a bit. They could take more hits without consequences and fight longer than Kenshin. In turn, their father had good skills but tired faster, and after several missed hits was incapacitated.
After training, Kenshin tiredly handed the two youngest children under Ichiro's command and headed to the pool, wanting to relax his overstrained muscles. His two wives were lounging in the pool and joyfully clung to him from both sides.
Swimming was very pleasant for the girls when they were pregnant, so in late pregnancy, the pool was the main pastime for the two beauties.
Kenshin immediately hugged them by the waists, lowering his palms a bit lower, enjoying their tender asses, mentally lamenting the impossibility of "entertainment" in late pregnancy. Of course he knew it was possible, but for some reason he felt uneasy having sex when the fetus was already fully formed.