Teacher, you wouldn't want...

Round Deer affectionately licked Yecheng's palm, then began using Reverse Cursed Technique.

A gentle, balanced power spread throughout his body, healing his hidden injuries and the problems caused by his Kekkei Genkai disease.

Under the system's adjustments, the energy of Reverse Cursed Technique, originally produced by multiplying negative Cursed Energy by negative Cursed Energy, was converted into an extremely special form of Yang Release Chakra.

This sensation, this potency, had yet to reach the level of the "Six Paths Yang Power" Naruto received in the original story, a divine power comparable to snatching someone from death's grasp.

But it wasn't far off!

It could be called the ultimate nature transformation of Yang Release Chakra!

Yecheng felt that his previously sickly body could suddenly produce more "strength."

The sensation came from deep within his bone marrow, as though something was stirring.

A thought struck Yecheng. With the stimulation from [Round Deer]'s Reverse Cursed Technique, the awakening of his Kekkei Genkai seemed to have accelerated greatly as well. Perhaps it wouldn't be long before he could use the power of "Shikotsumyaku."

But that was a minor detail. What mattered was his lifespan.

[Current lifespan: 60]

Opening the panel, he was greeted by a greatly increased lifespan limit!

My lifespan really did increase!

Yecheng was overjoyed. Nothing made him happier than extending his life.

Reverse Cursed Technique was a form of "positive" energy that could be expended to stimulate cell division and achieve rapid regeneration.

The speed of regeneration was limited by the user's proficiency.

In the original story, Shoko Ieiri and Yuta Okkotsu could both output Reverse Cursed Technique, yet their healing effects were worlds apart.

Not to mention top-tier experts on the level of Satoru Gojo and Sukuna, who could regrow severed limbs in mere seconds!

True health tanks!

Reverse Cursed Technique and Medical Ninjutsu each had their advantages and disadvantages, but together, they had almost no weaknesses!

It could be said that, purely in terms of treating injuries, Yecheng was now truly the number one medical ninja in the Shinobi World!

"Even after treating my Kekkei Genkai disease with Reverse Cursed Technique, my lifespan is only sixty years. The Kaguya Clan's bloodline really does make for a short life."

Yecheng couldn't help complaining.

Fortunately, the Shinobi World had quite a few ways to extend one's life. Kakuzu's Earth Grudge Fear, Orochimaru's Living Corpse Reincarnation, and Tsunade's Yin Seal combined with the Strength of a Hundred Technique were all good methods.

There was also the easily overlooked Senjutsu of the Three Great Sage Lands. Those three great sages were all beings who had lived for over a thousand years!

That afternoon.

Yecheng arrived at Konoha Hospital.

When his shadow clone had dispelled earlier, he had learned that Choza Akimichi had sought out Tsunade to invite her to advertise milk tea.

In other words, to become its brand ambassador.

He had even offered a full half of the profits as her advertising fee!

After thinking it over carefully, Yecheng realized that the other party had most likely misunderstood something, but he might as well go along with it.

Tsunade, however, was somewhat hesitant and told him she needed to think about it.

The milk tea originally had nothing to do with her. Yecheng had supplied the recipe, yet she would take half the profits just for doing some advertising?

Although Tsunade could sometimes be shameless, she was unwilling to take advantage of her student like that.

Especially now that she already regarded Yecheng as her final disciple, the one who would inherit her legacy.

She wanted to hear Yecheng's opinion.

"Isn't that great?"

Yecheng chuckled. "You're an incredibly popular beauty, Teacher. If you're willing to advertise it, the milk tea drinks will definitely sell like crazy!"

"What I'm saying is, you developed that drink recipe yourself, but you don't want a single coin. You're letting me take all the benefits!"

Tsunade was speechless.

"So what? Without you, Teacher, I couldn't get this business going myself anyway."

Yecheng said casually, "Teacher, you wouldn't want someone else to take all of a business worth tens of millions of ryo a month, would you?"

One month. Tens of millions of ryo!

Those two key phrases immediately made Shizune, who was pouring tea nearby, breathe faster.

After spending so much of her life following Tsunade, she had never seen that much money!

She had seen IOUs worth hundreds of millions, though.

They were sitting right there in a suitcase!

"Lady Tsunade, why don't you accept the advertising job? We still owe people so much money!"

Shizune couldn't help urging her.

"You just had to butt in."

Tsunade rolled her eyes at her.

Still, it was true.

She owed a lot of money. Although few people would actually come asking her to repay it, debts left unpaid for too long became debts of gratitude. It was better to pay them off if she could.

After all, debts of gratitude were the hardest to repay.

"Fine, fine. I'll agree."

Tsunade leaned back in her chair as though resigning herself to her fate.

Celebrities did advertise in the Shinobi World, but almost no ninja did that sort of thing.

For one thing, many in the other ninja villages still believed that ninja were tools. They didn't even have basic human rights, let alone the chance to become advertising celebrities.

For another, greater fame also meant exposing information. As a ninja, generally speaking, the more obscure you were, the greater the threat you posed to your enemies.

Of course, those who could easily take on the entire world alone were exceptions, though only a handful of such people had existed throughout the history of the Shinobi World.

Without any precedent, Tsunade felt somewhat lost.

"What should I do?"

Tsunade was a little puzzled.

"Just leave this to me."

Yecheng smiled confidently and volunteered.

"No. Your task today is to learn the Five Elements Seal first."

Tsunade was firm about this. She didn't want those trivial matters to affect Yecheng's training progress.

"The Five Elements Seal is easy. I've already learned it."

As he spoke, Yecheng held out his hand. From his little finger to his thumb, chakra flames bearing the symbols for "wood," "fire," "earth," "metal," and "water" ignited on his fingertips in turn.

Tsunade: ...

He mastered it in such a short time?

Was the Five Elements Seal really such a simple Sealing Jutsu?

I remember its difficulty being A-rank!

Tsunade rubbed her brow and waved a hand.

"Forget it. Go on. I'll leave this to you."

Shizune, meanwhile, looked perfectly calm, having grown completely accustomed to Yecheng's genius.

It was only the Five Elements Seal. Lady Tsunade was making far too much of a fuss.

Was there even a jutsu in this world that Yecheng-kun couldn't learn?

No.

Absolutely not!

At the Nara Clan residence.

The Ino-Shika-Cho trio gathered once again.

"I don't understand!"

Choza Akimichi took a large gulp of water, then said, "Shikaku, did Lady Tsunade really mean what you said she did?"

"Definitely."

"Then why did she seem so hesitant and tell me to come back first, saying she needed to think about it?"

Choza Akimichi was thoroughly puzzled.

Inoichi Yamanaka, who sat nearby, also said, "Could you have gotten it wrong? Maybe Lady Tsunade never meant that at all?"

"You're both thinking too superficially."

Shikaku Nara shook his head. "If Lady Tsunade had agreed immediately when Choza went there, wouldn't it have looked like she'd been planning this all along?"

Shikaku remained utterly composed and confident.

"By going through this back-and-forth of declining, Lady Tsunade gets the benefits without giving anyone grounds to criticize her. Truly brilliant!

"Just wait. Her student Yecheng will soon be paying us a formal visit!"

Inoichi Yamanaka and Choza Akimichi exchanged a glance. Was that really what was going on?

"Reporting!"

"Lord Yecheng has come to pay a visit!"

Inoichi Yamanaka and Choza Akimichi exchanged another glance, their pupils trembling.

It really was true!

Shikaku was incredible!