Hatake Sakumo's Surveillance, Tsunade Who Refuses to Lose

Uchiha Dan was, after all, a man who possessed all of Tobirama Senju's talents, so his sensory abilities were currently among the very best in the entire ninja world—perhaps unrivaled.

As a gifted member of the evil Senju Clan—as Uchiha Dan had dubbed them—Tobirama Senju's sensory abilities had been innate.

He could even make chakra contact the ground and sense the number of enemies a thousand miles away with extreme accuracy.

Before the era of rampant power-ups, Tobirama Senju's title as the number one Sensory Ninja in the ninja world had been well deserved.

"That's enough!" Seeing that it was about right, Uchiha Dan spoke up to stop him.

He then lifted the injured ninja's clothes, exposing his chest and abdomen. He swiftly opened his pouch of needles and began inserting them into the man's acupoints in a specific sequence.

As the twelve needles went in, the injured ninja immediately felt his entire body go numb and tingly.

At the same time, the chakra within his body began circulating beyond his control, slowly gathering around the wound and continuously activating the cells there.

"Th-This..." Feeling the wound heal faster, the injured ninja was dumbfounded.

"Doctor Dan, thank you, thank you!" The injured ninja was so moved that he was nearly in tears.

With those needles, the injured ninja's wound would heal at least thirty percent faster. And the faster a wound healed, the fewer aftereffects it would leave behind.

For mercenary-like ninjas, strength was everything.

After all, ninjas did not engage in production. If he could no longer take missions and earn money because of an injury, what would happen to his wife and children?

That was why Uchiha Dan's miraculous medical skills were enough to excite any ninja.

The nurses and Medical Ninjas observing and studying nearby also looked at Uchiha Dan with eyes full of admiration.

No matter how severe the injury or how difficult the illness, as long as Uchiha Dan stepped in, there had never been a problem he could not solve.

Nowadays, all the people of Konoha knew that Konoha Hospital had a Doctor Dan capable of bringing the dead back to life.

Even Tsunade, known as a genius Medical Ninja, fell slightly short when compared to Doctor Dan.

"No need to thank me. Go pay the treatment fee at the payment counter." Uchiha Dan's expression remained calm. "Remember to come back for another round of needles in three days."

After returning to his office and closing the door, Uchiha Dan walked over to the window.

Sensing the Anbu Ninja watching him, Uchiha Dan frowned.

Because he had never displayed anything unusual, and the chakra aura in his body had always remained at the level of a Genin.

Perhaps thinking it unnecessary to have an entire squad monitor him, Hiruzen Sarutobi had withdrawn several people two years ago.

Although the number of people watching Uchiha Dan had gone from one squad to only one person, the remaining one was far too dedicated.

More than once, Uchiha Dan had wanted to shout out the window: Hatake Sakumo, are you fucking done yet?

When you were injured back then, I was the one who saved you.

If you get injured again someday, don't come begging me. If you dare show up, I'll stab you to death with a needle, you bastard!

But in the end, he could only think about it.

Pretending to take a nap, he drew the curtains and blocked Hatake Sakumo's line of sight. Then Uchiha Dan rapidly formed hand seals.

Feeling the flow of chakra within his body, Uchiha Dan nodded in satisfaction.

Not bad. A close-range offensive B-rank ninjutsu, Water Release: Water Fang Bullet!

Once activated, this ninjutsu compressed water into blocks while making them spin at high speed to increase their destructive power, allowing them to attack from every angle.

It seemed that injured fellow from earlier was quite strong. Judging from the amount of chakra in his body, he should have been a Special Jonin.

Over the years, Uchiha Dan had secretly learned more than a hundred ninjutsu through this method.

Whenever he thought of that, Uchiha Dan felt even more depressed.

With his current talent, if his training had not been interrupted, his strength would probably have reached Kage level long ago.

Seven years!

What an incredibly precious golden seven years!

If an ordinary ninja missed those seven years, they would probably have already become useless.

Uchiha Dan had not become useless, but the only thing worth mentioning in his body now was his chakra reserves, which exceeded those of ordinary Elite Jonin.

It had to be said, the evil Tobirama Senju's talent was truly astonishing.

For the past seven years, Uchiha Dan had never trained for even a second in public. However, he had mastered the method of chakra extraction since childhood.

After developing a ninjutsu to conceal his chakra aura six years ago, Uchiha Dan finally dared to resume extracting chakra. He had even improved the chakra extraction method.

However, aside from his chakra reserves, all of Uchiha Dan's combat and training existed only in his imagination.

So much for his actual combat ability—it was enough to bring tears to one's eyes.

That was also why, despite always wanting to escape Konoha, he had remained obediently in place until now.

Fortunately, five years ago, Uchiha Dan developed a method of using chakra to stimulate acupoints while circulating chakra throughout the body, slowly increasing physical strength.

Uchiha Dan called it the Chakra Body Forging Method.

For five years, Uchiha Dan's physical condition had improved every single day.

On top of that, he simulated taijutsu training and combat in his mind every day.

Once he had the chance to truly begin training, his strength would inevitably soar by leaps and bounds in a short time.

Provided he got the chance!

That was why he had long since stopped planning to remain in Konoha. If even the slightest opportunity arose, he would escape immediately—running as far away as he possibly could.

To hell with Konoha, to hell with Tobirama Senju, to hell with Hiruzen Sarutobi, to hell with Hatake Sakumo... to hell with a whole lot of people!

Just as Uchiha Dan was about to take a brief nap before continuing his Chakra Body Forging Method and his mental simulations of training, the office door was shoved open roughly.

"Uchiha Dan, get out here!"

Lord Tsunade stormed in furiously and barbarically, grabbing Uchiha Dan by the collar and dragging him outside without a second thought.

"You savage, let go! Or I'll make you regret it!" Uchiha Dan struggled nonstop. "Bastard, brute, baboon, gorilla, monkey, Tarzan..."

But Tsunade's strength was immense. Even if Uchiha Dan went all out, he could not break free—let alone now, when he could only pretend to be weak.

Tsunade seemed not to hear Uchiha Dan's furious cursing. She dragged him straight into a ward and up to a hospital bed.

The patient, stared down fiercely by Tsunade, shuddered all over and cautiously asked, "L-Lord Tsunade, what... what are you doing?"

"Hmph, shut up!" Tsunade rudely cut him off, saying coldly, "Last time, I lost to this guy in medical skills. Today, I'm competing with him again. Just lie there obediently!"

Seeing Uchiha Dan cautiously edging toward the exit in preparation to slip away, Tsunade seized his wrist.

"You still dare to run?" Tsunade applied a little force to her grip, immediately making cold sweat pour down Uchiha Dan's face.

After being manhandled by Tsunade like this, Uchiha Dan's temper flared as well.

Though pain made his whole body tremble, he did not make a sound. He merely stared coldly at Tsunade.

"You brute, didn't you eat today?" After a long while, Uchiha Dan gritted his teeth and glared viciously at Tsunade.

He looked as though he were daring her to kill him right then and there!

Seeing Uchiha Dan's unyielding, death-before-submission expression, Tsunade felt a little guilty. Her gaze shifted away, and she unconsciously loosened her grip.

Still, she forced herself to save face. "You're not allowed to leave, or I won't let you off!"

However, her tone had clearly weakened considerably.

Compared to her earlier imposing manner, she now sounded a little like she was acting cute, making goosebumps rise all over Uchiha Dan's body.

There was no need to question Tsunade's beauty. At seventeen, she had already blossomed into a graceful beauty like a lotus rising from the water.

Though her figure was still far from reaching its full potential, her clothes could no longer conceal the perfect, imagination-stirring curves they outlined.

Uchiha Dan was not blind, so naturally he could see it.

Her noble status, stunning beauty, and perfect figure had captivated countless people her age.

In Konoha, the people secretly in love with Tsunade could line up from one end of the village to the other.

Yet Uchiha Dan had never been willing to speak properly with Tsunade, nor was he even willing to give her a proper look.