Uzumaki Clan's Sealing Jutsu

Kushina prepared a lot of food for Yamanaka Tohru in one day, and also got quite a few Ration Pills from Jiraiya.

Kakashi and Yamanaka Tohru followed behind Kushina, discussing the further development of the Chidori.

In the evening, Yamanaka Tohru told Yamanaka Seiko that he was going to Mount Myōboku to train. Although Yamanaka Seiko was reluctant, she knew it was a necessary step for her son's growth.

Yamanaka Seiko told Yamanaka Tohru everything she could think of, in great detail. Yamanaka Tohru nodded and agreed to it all.

The next day, four people, excluding Jiraiya, gathered at Training Ground 3.

As usual, Namikaze Minato researched the Flying Thunder God Technique, Kakashi practiced the Rasengan, and Yamanaka Tohru and Kushina studied sealing jutsu.

Kushina didn't know how long Yamanaka Tohru would be gone, so she taught him basic sealing jutsu like the Seal Evil Law Seal and the Five Elements Seal all at once.

Yamanaka Tohru couldn't learn them all immediately, so he activated his Sharingan to memorize Kushina's methods of using the sealing jutsu, planning to study them later.

"Tohru, the next sealing jutsu is one of the few S-rank seals of our Uzumaki Clan," Kushina suddenly said.

"What is the Yin Seal, Sister Kushina?"

"The Yin Seal! This jutsu was originally developed for the women of our Uzumaki Clan. Its purpose was to maintain a woman's youthful appearance and grant eternal youth. Later, after modifications by Grandma Mito and Elder Sister Tsunade, its advanced form, the Hundred Healings Mark, can be regulated by Chakra to keep the body's functions in their prime state."

Yamanaka Tohru naturally knew about the Yin Seal. In the original story, Tsunade and Sakura's Hundred Healings Mark used the Chakra accumulated in the Yin Seal.

Yamanaka Tohru had originally thought that becoming younger was also an effect of the Hundred Healings Mark, but he hadn't expected that this was actually the development purpose of the Yin Seal. It seemed that no matter the world, eternal youth was a woman's greatest dream.

"Sister Kushina, can I learn the Yin Seal?" Yamanaka Tohru felt something was off, but he couldn't resist the temptation of an S-rank sealing jutsu and asked.

"Of course, you can. But! Your Yin Seal can only store Chakra, and its release will only last for a moment. It won't work on male ninjas for maintaining appearance or regulating bodily functions," Kushina said.

"Then, Sister Kushina, approximately how long will the accumulated Chakra last before it's depleted?"

"According to records, about 10 minutes."

Only 10 minutes. No wonder no male ninjas used the Yin Seal in the original story.

It took over 2 years to fill the Yin Seal, it could only be used for a short 10 minutes, and there was no forbidden jutsu like Tsunade's Ninja Art: Creation Rebirth that could quickly recover within those 10 minutes.

"Sister Kushina, this jutsu is too much of a chicken rib!" Yamanaka Tohru complained.

"Chicken rib? What does that mean?" Kushina often heard strange words from Yamanaka Tohru, and they always made sense.

"Chicken rib means it's tasteless to eat but a pity to discard. It means your Yin Seal has little use for me, but it's an S-rank sealing jutsu, so I can't bear not to learn it," Yamanaka Tohru explained.

"I see. Then don't learn it. I'll just carve the Yin Seal's sealing formula for you," Kushina said. Hearing that Yamanaka Tohru wasn't very interested in the Yin Seal, Kushina didn't force him, and simply tattooed a rhombus-shaped sealing formula on Yamanaka Tohru's arm.

In the short few months they had spent together, Kushina had come to regard Yamanaka Tohru as one of her closest people. She naturally taught him the sealing jutsu without reservation.

Yamanaka Tohru spent the whole day listening to Kushina explain sealing jutsu. Except for those related to Tailed Beasts, Kushina demonstrated almost everything for Yamanaka Tohru.

"Minato! Come here for a moment." After demonstrating the Four Symbols Seal for Yamanaka Tohru, Kushina hesitated for a moment before calling out to Namikaze Minato.

Kushina called Minato over, and after a discussion between the two, Minato nodded.

"Tohru, there's another forbidden seal in the Uzumaki Clan. Minato and I discussed it, and I've decided to teach it to you together." Kushina glanced at Namikaze Minato after saying this.

"Tohru, the name of this jutsu is the Reaper Death Seal! This is a jutsu that can only be used once; it's a true forbidden jutsu," Namikaze Minato said with a serious expression.

"That's right. This jutsu requires the caster to sacrifice their soul to summon the Shinigami, who then seals the enemy's soul. After the sealing is complete, the caster's soul will also be devoured by the Shinigami, and their souls will forever hate and fight each other inside the Shinigami, never finding release." Kushina felt chills all over her body just by introducing this jutsu.

Yamanaka Tohru naturally knew about the Reaper Death Seal. In the original story, this jutsu was used to split the Nine-Tails in half.

In the original story, only the Sage of Six Paths and the Shinigami could separate Tailed Beasts. The Sage of Six Paths split the Ten-Tails into nine, while the Shinigami, with just a phantom form, could split the Nine-Tails in two. Compared to the Sage of Six Paths, the Shinigami's life form might be higher.

Yamanaka Tohru was an atheist, or rather, in his opinion, gods were also humans. Gods simply did things that humans couldn't, or they evolved to another level of existence.

"Tohru, the Reaper Death Seal is a very dangerous jutsu. I hope you never need to use it in your lifetime."

"I understand, Brother Minato."

After Yamanaka Tohru agreed, Namikaze Minato told him the hand seals for the Reaper Death Seal. The hand seals for the Reaper Death Seal were too long; Yamanaka Tohru had never memorized them while watching the anime in his past life, and now he finally knew the hand seals for the Reaper Death Seal: "Snake-Boar-Ram-Rabbit-Monkey-Rat-Rooster-Horse-Snake."

After the final Reaper Death Seal was taught to Yamanaka Tohru, he became the second outsider to have the opportunity to learn the Uzumaki Clan's sealing jutsu. Namikaze Minato was the first.

After the destruction of Uzushiogakure, most of the Uzumaki Clan members had died. Those who survived had mostly gone into hiding and lived their own lives.

After the destruction of the Uzumaki Clan, Kushina no longer intended to hide the sealing jutsu. After getting together with Namikaze Minato, Kushina taught him the Uzumaki Clan's sealing jutsu. Now she had taught it to Yamanaka Tohru as well.

Unknowingly, it was getting dark. Tomorrow was the day Yamanaka Tohru would go to Mount Myōboku. Namikaze Minato treated the three of them to yakiniku as a farewell gift. During the meal, Namikaze Minato also gave Yamanaka Tohru one of his specially made kunai.

"Well then, Sister Kushina, Brother Minato, Kakashi, goodbye!" After finishing the yakiniku, Yamanaka Tohru said goodbye to the three of them.

Upon returning home, Yamanaka Seiko had already fallen asleep. Yamanaka Tohru didn't disturb her, but he did tell Inoichi, who had just returned from a mission, to take care of Yamanaka Seiko.

Early the next morning, Yamanaka Tohru used the Summoning Technique to summon Sage Fukasaku.

"Are you ready, Tohru-chan?"

"Yes, Sage Fukasaku!"

"Then let's go!" After Sage Fukasaku finished speaking, Yamanaka Tohru felt his vision blur. When he looked around, the scenery was already different. Mount Myōboku had arrived!