Crossing the ninja world, the beginning became Uchiha Obito

"boom!"
Beads of sweat appeared on both of their foreheads.

Tsunade gritted her teeth and insisted, her eyes shone with a stubborn light.

And Obito is running Chakra to resist the opponent's attack, while running the Otsutsuki blood in his body, so that the Chakra in his body can fill his arms.

"Boom!"
Finally, after a tug-of-war, Tsunade still lost a game.

"Your willpower is really strong."
Obito looked at Tsunade with some surprise.

"Hmph, I'm willing to bet and admit defeat, I lost." Tsunade said with a curl of his lips.

"No, let's compete in the third game. I want to convince you that you lose." Obito said with a smile.

"Don't regret it!" Tsunade said, staring at him angrily.

"certainly."
"Okay, let's do it again!"
"We will compare healing ninjutsu next, do you dare to compare with me?" Tsunade said confidently.

"This is it."
Obito muttered.

Although Tsunade's strange power is amazing, he does have a hand in medical treatment, and he has developed the yin seal and the Baihao technique of creating regeneration, which can be regarded as the top level in this ninja period.

However, Obito also has the Asura cell Otsutsuki bloodline and the ninjutsu of Yang Dun, so he is not afraid of Tsunade at all.

And my physique is better than Tsunade's. Even the chakra in my body can absorb the opponent's chakra to restore my injuries, and I can also heal Tsunade in turn. It's very cool to think about it.

"Okay, I promise!"
Tsunade took the lead in scratching a big cut on his arm, and then healed his injury with the Palm Immortal Technique.

"call."
Tsunade let out a long sigh of relief, stretched his right hand to his mouth, opened his mouth and blew, and the bloody smell disappeared without a trace.

"As far as this kind of palm fairy art is concerned," Obito raised his eyebrows and said.

Immediately, he also cut a big gash on his right hand, the same action.

Tsunade frowned slightly upon seeing this.

"What? Do you still want to continue?" Obito asked.

Tsunade didn't speak, just nodded.

"Okay, let's continue with healing ninjutsu."

Tsunade untied the yin seal on his forehead, then opened the yin seal again, injected Chakra into his body, and started the treatment again.

But this time.

She injected chakra into her left hand first, and then into her right hand.

keep repeating this cycle
There is a large amount of chakra stored in the yin seal, which can be used by Tsunade at any time to support her in opening the Baihao technique, so that she will not feel too tired.

"call."
"Crack~"
Tsunade exhaled lightly.

"See? Can you create regeneration like my Baihaozhijutsu? My Baihaozhijutsu can quickly heal any injury." Tsunade raised his eyebrows and said.

"Really? I want to try!" Obito snorted coldly.

A faint smile appeared on Tsunade's face, and she closed her eyes again.

next moment.

Tsunade's left hand started to create and regenerate again.

"This time, let me try your limit." Obito snorted coldly and started his own creation.

Before I knew it, the night was already dark.

"laugh."
Obito directly injured most of the right side of his body.

There was a lot of blood on Obito's right hand, and his face was as pale as paper, looking very weak.

But Obito is still trying to create regeneration.

Tsunade's eyebrows furrowed tightly.

Is this guy crazy?Could it be that he wants to destroy his body and then end it all by committing suicide?
"What's the matter with you, why do you keep doing self-harming things." Tsunade looked at Obito's face and asked worriedly.

"Ha ha."
Obito sneered, "You won't understand."
After speaking, he cut his thigh with his left hand.

"what!!"
"hiss!!"
Gritting his teeth, Obito cut his thigh, and blood flowed out.

"what."
Obito yelled again in pain, his entire thigh was stained red.

Obito's expression became more and more painful.

Seeing this scene, Tsunade couldn't help feeling a pity in his heart.

If it goes on like this, I'm afraid he won't be able to keep his left leg.

As a medical ninja, do you want to stop him?

However, after Obito took a deep breath, he began to activate his own yang escape chakra. The yang escape chakra uses the energy of the body in charge of life as the source of yang power to give life to the form.

Not only can it heal any injury, but it can also create life. More importantly, this power can also be transformed into yang attribute in the body. Using yang escape can improve the quality of yang escape chakra, and even change the body's cell structure.

This kind of magical power is by no means comparable to pure medical ninjutsu.

Obito's injuries began to heal at a speed visible to the naked eye, but it took only a few seconds for them to heal completely.

Seeing his restored body, Obito breathed a sigh of relief, then looked at Tsunade, and said, "You are very skilled in this trick, it seems that you should have been a medical ninja before."
"Yeah." Tsunade nodded.

"But it's still not as good as you, what kind of medical ninjutsu are you using, why can you recover so quickly?"

Tsunade asked suspiciously.

"This is a new healing technique I just learned, called 'Yangyang Dun·Regeneration', which can restore the body to its original state in a short period of time, but the process will be more painful." Obito said lightly.

"Yangdun Chakra? So I seem to have heard of it before." Tsunade nodded thoughtfully.

Then Tsunade said: "I lost, and I lost completely. According to the bet, I will promise you two things. Tell me."

"Let's talk about this later, but I can make a request first. I paid off the gambling debt for you just now. I don't have any money with me now. You can give me the money first. This is a request." Obito said with a smile.

Hearing Obito's words, Tsunade couldn't help but froze for a moment.

She shook her head helplessly and said, "Is your brain broken? If I have money, would you help me pay off my gambling debt?"

Obito curled his lips and said, "I heard that you have a crystal necklace that your grandfather gave you, right? Just give it to me."

This crystal necklace was originally a relic of the first generation of Hokage Senjujuma. It is a chakra crystal that only responds to the first generation of Hokage Chakra, which can restrain the power of Jinzhuriki.

In the original original book, Tsunade gave it to Naruto Uzumaki to suppress the Kurama in his body.