Chapter 41: First Encounter with fuinjutsu Techniques

Tsunade Senju is undoubtedly the "Princess" of Konoha.

She is not only one of the legendary Sannin but also the cherished granddaughter of the First Hokage, "God of Shinobi" Hashirama Senju.

Compared to her invincible husband, Hashirama's wife, Mito Uzumaki, is less renowned.

Even the current Konoha shinobi who have seen her in person remember her as "a very kind old lady who loved the village and supported and protected everyone she loved."

However, Tsunade, as her granddaughter, still remembers the immense power of fuinjutsu.

How powerful are fuinjutsu? Few can say for sure in the current shinobi world, as this vast and profound system has declined.

Not many remember that Mito Uzumaki's prowess in fuinjutsu was so advanced that she could suppress and seal the full Nine-Tails. Though she couldn't communicate with it, controlling its chakra was effortless. After Hashirama's death, she remained Konoha's strongest force for a long time.

Back then, the Uzumaki clan, who had a longstanding alliance with the Senju clan, stood out in the world thanks to their powerful fuinjutsu. However, this also made them targets of fear and envy from multiple countries and shinobi clans. After a tragic event that no one in the shinobi world speaks of, the Land of Whirlpools was destroyed, and the Uzumaki clan scattered, their name barely surviving.

Since then, fuinjutsu have declined, and truly world-altering grand fuinjutsu have been lost.

But Tsunade knows that the village holds many treasured manuscripts on fuinjutsu.

Back when her grandmother married her grandfather, it was a grand union that moved the entire shinobi world, and her dowry included a wealth of knowledge on fuinjutsu.

Shiki Fujin, Four Symbols Seal, Yin Seal... some powerful fuinjutsu are still in the hands of Konoha shinobi.

However, despite their power, fuinjutsu have a high entry barrier, much like space-time ninjutsu, reserved for geniuses. Ordinary people delving into fuinjutsu might find practicing a few fire-style jutsus more practical.

Tsunade, rubbing the purple diamond-shaped mark on her forehead, called out to Yuto, "Yuto, come here."

"What is it, sensei?" The branch family boy stood before the blonde woman, still using Mystical Palm Technique on his arm. Fortunately, the bleeding had stopped, and the wound was bandaged, so Tsunade wasn't triggered by her hemophobia.

"Yuto." Tsunade tapped his forehead protector, "I want you to try a technique... do you know the mark on my forehead?"

"Yes, you mentioned it to me," Yuto nodded.

"Yin Seal."

"Now, I want to teach you this technique." Tsunade paused to organize her thoughts:

"Yin Seal is an S-rank auxiliary ninjutsu. Its function is to gather, regulate, and control chakra. Once you make some progress, a diamond-shaped mark will appear on your forehead. For advanced users, this Yin Seal can be used to maintain youthfulness through its low output and fine regulation."

"My grandmother, Mito Uzumaki, also had this mark on her forehead."

"However, my Yin Seal is different from the ordinary Yin Seal. I've made many modifications and developed extended techniques based on these improvements. It's significantly different from the original version."

"I've named this mark... the Strength of a Hundred Seal."

"Yin Seal requires patience. The practitioner must spend a considerable amount of time regulating and accumulating their chakra to condense this Strength of a Hundred Seals."

"Don't rush, Yuto. Take it slowly. Starting this afternoon, you will practice the Yin Seal. But don't neglect medical ninjutsu and your Chakra Enhanced Strength."

Yuto nodded solemnly, "Sensei, I won't disappoint you!"

"Good." Tsunade tousled the branch family boy's hair with a smile,

"Keep it up."

Yuto asked a few more questions about practicing the Yin Seal, then returned to continue healing his injuries.

Tsunade sat hugging her knees, watching her talented disciple. Her gaze was complex.

To prevent him from feeling too much pressure, she didn't tell him everything.

Actually, the primary reason for teaching him the Yin Seal was to test Yuto's aptitude for fuinjutsu!

Anyone can learn the Yin Seal with enough perseverance; it's just a matter of time. Most practitioners succeed in their fifth year.

But succeeding in the fifth year indicates no special talent for fuinjutsu, just average proficiency.

Succeeding in the third year shows some talent.

Completing it in the second year indicates a genius suitable for learning fuinjutsu.

Completing it in one year is incredibly rare, even among the Uzumaki clan at their peak. Such individuals are true prodigies, exceptional talents who, with careful nurturing, can become top Jonin or even Kage-level masters. Mito Uzumaki was one of these rare talents.

In a way, the Yin Seal is a "fuinjutsu talent detector"!

Tsunade had thought it through. If Yuto progresses quickly, showing significant talent in fuinjutsu, she would continue teaching him.

If he shows no talent, she would find another path, using the simplest method if necessary—since Lion's Fang Bite damages the user's body, she could use Creation Rebirth to heal it, enduring the damage and healing cycle. It's cumbersome but effective.

In fact, given her personality, Tsunade preferred the second method, straightforward and reliant on her robust health.

But she understood that her disciple, from the Hyuga clan, wasn't known for resilience or chakra reserves like the Senju clan. He wouldn't endure such repeated damage and healing.

"Eh? Wait, I feel like I've forgotten something important..."

The blonde beauty suddenly scratched her head, realizing something.

She looked up sharply at Yuto.

In the forest, about twenty meters away, the young man was treating his arm earnestly. He had a fair face, well-proportioned and slender figure, appearing like a pampered young master. But upon closer inspection, his hands were covered in calluses and scars, indicating rigorous training and combat.

Tsunade opened her mouth but ultimately said nothing.

She sat on the ground, muttering in a slightly self-defeating tone, "Whatever, if anything happens, the old man will back me up... I'll go talk to him later."

That evening, at the Hokage Tower.

Hiruzen Sarutobi looked at his upright student in disbelief.

"Tsunade... you want to teach Yuto ... no, that's not it." He paused, his tone becoming serious, "You plan to teach high-level Uzumaki fuinjutsu to a Hyuga branch family member?"

(End of Chapter)

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