She placed one foot on the rock and, in an instant, reduced it to dust with a sharp blow. You could say you've already tasted this technique with the Celestial Lance Kick.
Tsunade nodded, "Well, that's why we'll start slowly. Take this rock and try to crack it. Concentrate your chakra in your hand, but release it only at the precise moment you strike."
Shikai took a deep breath and placed his hands on the rock. He concentrated his chakra as Tsunade had taught him and struck with all his might. The stone exploded as predicted.
Rubbing his sore wrist, Shikai frowned. "I understand, but it's not as simple as it seems."
Tsunade patted his shoulder. "Nobody said it would be. Try again."
...
To strengthen his endurance and control, Tsunade attached weights to Shikai's wrists and ankles. She then ordered him to perform physical exercises under the scorching sun: running in the sand, lifting rocks, and even digging holes.
"These weights are not there to slow you down," explained Tsunade. "They will force you to use your chakra more efficiently to compensate for the fatigue."
Shikai, already exhausted, carried out the tasks without complaint. Each movement seemed more difficult than the last, but he knew this type of training was essential to becoming stronger.
As evening fell, Tsunade ordered Shikai to meditate. They sat in silence near an improvised campfire to ward off the intense desert cold, gazing up at the starry sky.
"Close your eyes and feel your chakra," she said calmly. "To master Enhanced Chakra Strength, you must be in symbiosis with your energy. It should not control you; you control it."
Shikai took a deep breath and focused. At first, he struggled to channel his chakra, but with Tsunade's patient guidance, he managed to sense his energy flow with greater clarity.
The next day, after hours of practice, Shikai finally succeeded in cracking a rock without injuring himself. Fatigue was visible on his face, but his eyes shone with satisfaction.
"Well done," said Tsunade with a smile.
During his rare moments of rest, Shikai occupied himself by crafting explosive scrolls. He utilized his expertise in fūinjutsu to create effective and precise seals, hoping to sell them in the ninja villages they would encounter.
Tsunade, curious, observed his work one evening. "You're quite skilled with those seals. You could easily make a career out of it."
Shikai shrugged. "It's not my primary goal, but it could fund our travels. And it's good practice to improve my precision."
She chuckled softly. "Clever. But make sure you don't neglect your main training. Scrolls won't save you if you face a powerful enemy."
'Unless your name is Konan...'
...
Three days later...
As the sun reached its zenith in the clear sky, Shikai and Tsunade advanced along an isolated road, following a narrow river that snaked through an arid landscape. After days of intense training, the silent walk was a welcome break.
However, their tranquility was suddenly disrupted when a group of ninjas appeared before them, emerging with smirks on their faces. There were five of them, wearing ninja headbands marked with renegade symbols.
"Good day to you," said their leader, a tall and muscular man with a scar on his face. "You seem well-equipped. Leave everything here, and we'll let you go without a fuss."
Shikai raised an eyebrow, calmly fixing the group with his gaze. "Aunt Tsunade, do you want me to take care of them?" he asked, a hint of impatience in his voice.
Tsunade sighed, crossing her arms.
"I'll handle this."
"Very well, Shikai. But don't get your clothes too dirty."
The renegade ninjas laughed, believing they were dealing with an arrogant young boy. "Just one kid? You must be joking!"
The leader gave a signal, and three of the ninjas pounced on Shikai. But he showed no sign of panic.
Shikai threw a kunai marked with an Hiraishin seal near the leader of the renegades. In an instant, he disappeared and reappeared behind him, striking with a precise blow enhanced by his Enhanced Chakra Strength. The leader was thrown to the ground with such force that his skull was crushed.
The other ninjas, stunned, backed away. "That boy... it's impossible!" stammered one of them.
Shikai gave them no time to react. Performing more complex hand seals, he summoned an immense water dragon.
**"Suiton: Explosive Water Dragon!"**
The dragon swooped down on his opponents with devastating power, knocking them to the ground. The impact was so intense that the ground shook slightly, leaving the assailants completely immobilized.
The last ninja tried to escape, but Shikai, using his Enhanced Chakra Strength, leaped with surprising speed and landed in front of him. He grabbed the fugitive by the collar and lifted him with one hand, his gaze icy.
"You chose the wrong target," he murmured before breaking the fugitive's neck.
...
As dusk began to fall, the sky turned orange and pink.
"Now that you know how to protect yourself, it's time to learn to support your allies. As a medical ninja, your ability to transfer chakra can save lives."
She extended her hands and formed a gentle flow of green chakra between her palms. "This technique allows you to transfer your energy to someone else. However, it requires perfect control to avoid draining yourself completely."
Shikai watched intently. "How can I ensure I don't give too much?"
Tsunade placed a hand on his shoulder. "It's a matter of feeling. You must perceive your ally's condition and adjust your flow accordingly."
After several attempts and precise guidance from Tsunade, Shikai finally managed to transfer his chakra without tiring himself out too much.
Tsunade smiled with pride. "You're progressing rapidly. A bit too much... Chizune took months, and you, just a few hours."