The Mitotic Regeneration Jutsu was divided into three parts. The first was the Strength of a Hundred Seal—a seal that stored chakra, a massive amount of it.
"So listen, boy, the seal we are going to make will connect to your brain and your chakra network as well. We will try to make it as stable as possible, and it should be able to store... twenty times the amount of chakra you possess now," Tatsuo said after sensing the amount of chakra Kaida possessed.
"Is that amount fixed?" Kaida asked.
"No, it will increase as your chakra reserves grow, but that is not necessarily a good thing. The seal we are going to make is essentially going against nature. You will possess much more chakra than you should, so it's definitely not going to be easy.
It will be unstable by nature, no matter how well we craft it, and its instability will increase as its storage capability grows. You will have to maintain its stability consciously. And though the damage that occurs while you sleep may be minimal, it could accumulate, so you will also need to repair it.
"The seal will be made using your own blood, and you will have to maintain it for your lifetime. Though there isn't much to do, just make sure to check if everything is fine. Also, the seal itself will use a small portion of the chakra you store, so you must ensure there is always a sufficient amount of chakra in the seal," Kiyoshi explained.
"Yes, sir," Kaida said. Mitsuru had already told him about this. Since there was not much to do, and the repairs could be completed in five minutes, it wasn't really a problem.
"Okay then, let's start," Tatsuo said as Mitsuru handed them the same brush she had used previously while creating the healing seals on his body.
"Stay still, boy. Don't move during the process," Tatsuo added as he and Kiyoshi began making various strokes on Kaida's body. Initially, they used normal ink, but then they channeled chakra into the brush, causing its bristles to harden and prick Kaida's skin with each stroke. Kaida realized how they were going to use his blood for the seal.
After enduring the torture of the past month, these little pricks didn't bother him much. He remained perfectly still during the process.
After about three hours of drawing various strokes, the process ended. Kiyoshi stood up and moved to Kaida's head while Tatsuo moved to his legs. They began channeling their chakra into the seal, making hand signs. Slowly, all the seals shifted toward Kaida's forehead, and the same mark as Tsunade's appeared on his head.
Both Tatsuo and Kiyoshi were visibly tired from the process, and their chakra was almost completely drained.
"This seal is as tough as always," Kiyoshi said.
"Yeah," Tatsuo agreed.
"Thank you for your hard work, sir. Please take some rest in my office. I've arranged some refreshments for both of you as well," Mitsuru offered.
"Yeah, we could use that. Until then, boy, try to fill the seal as much as you can. It will be important for the next part," Tatsuo said.
"Yes, sir," Kaida replied. He remained in position, focusing on filling the seal. It felt odd, like his chakra was flowing into a hole. Since there was no mechanism to use that chakra yet, it almost felt like he was wasting it, but he knew better and continued filling the seal.
Tatsuo and Kiyoshi left the room with Mitsuru, leaving Kaida behind. He kept filling the seal, but when he had transferred almost thirty percent of his chakra, he felt something—like a repulsion. Initially,
it had been easy to store chakra, but as he continued, it became harder. He had to concentrate intensely, and his speed slowed. However, with nothing else to do, Kaida decided to force more chakra in, especially since he had a cheat up his sleeve.
Slowly, his eyes began glowing red, and three tomoe appeared within them.
3-Tomoe Sharingan.
By the time he had transferred seventy-five percent of his chakra into the seal, the others returned.
"How is it, son? Were you able to make any progress?" Kiyoshi asked patiently.
"Sorry, sir. I could only send seventy to seventy-five percent of my chakra into the seal. The more I filled it, the harder it became," Kaida admitted.
"Yes, that's the limitation of the seal. Since it's an organic seal, it works somewhat like a magnet. You have to force your chakra in the first time. Now that you've transferred seventy percent, if you empty the seal and refill it, it will be significantly easier," Tatsuo explained.
"So only the first time is difficult?" Kaida asked.
"Yes, and with your speed, it should be quite easy for you. Normally, a person would only be able to transfer forty to fifty percent of their chakra into the seal on the first day. Seventy percent is quite impressive," Kiyoshi said.
Kaida wanted to say he wasn't at his limit yet, but he held back, thinking it would sound like boasting. He wasn't the type to brag about his talents like a typical Chinese novel protagonist, especially since he had used the Sharingan during the process.
"We should move on to the next part, then," Tatsuo suggested.
"Are you ready, boy? Or would you like some rest?" Kiyoshi asked, concerned about Kaida since he had just been poked all over his body. It was quite painful, and the same process would happen again.
"No, sir. I'm perfectly fine and ready for the next step," Kaida replied, excitement evident in his voice.
"Haha, youth! Fine, let's begin," Kiyoshi said.
From their discussion, Kaida deduced that, even though both Tatsuo and Kiyoshi were grandmasters, Kiyoshi seemed to be the senior, not just in age but also in position for some reason. Kaida thought it would be the opposite since Kiyoshi wasn't from any clan, or at least wasn't wearing any symbol.
'Maybe he is from a clan and just not wearing the symbol,' Kaida thought, but the respect he felt for Kiyoshi remained the same. Despite his power, Kiyoshi was gentle by nature, and Kaida admired that.
Now, Mitsuru and the others began preparing for the second part of the seal: the Yin Seal Release. If the previous seal was like a tank to store chakra, then this one would be the valve and pipes to move that chakra to the necessary parts when required.
Mitsuru stepped forward and began marking Kaida's body, using ink of various colors. From the location of the marks, Kaida understood the reason. The healing seals Mitsuru had made earlier were completely invisible.
Kaida could feel them in certain locations but couldn't see them. Since they needed to make the second seal to supply chakra to the healing seals, knowing their locations was important. Mitsuru marked the positions, using different colors if the seal was present inside the body or on the organs.
"Clench your teeth, boy. This is going to be painful," Kiyoshi warned, his face completely serious, devoid of the grandfatherly smile he usually wore.
Kaida nodded, understanding the gravity of the situation. Kiyoshi and Tatsuo nodded in return and began channeling their chakra into the seal.