The seventh day, at dusk.
At the seaside training ground, the setting sun hung low on the horizon, dyeing the entire beach in a warm golden glow. A salty sea breeze swept across the shore, carrying with it the scattered traces of seven days of relentless training.
Kakashi stood beside a distant reef, his gaze fixed on the three youths before him.
They were covered in minor wounds, their clothes soaked with sweat—but their backs were straight, without the slightest hint of exhaustion.
Seven days had passed in the blink of an eye.
Yet the changes in the three of them were nothing short of astonishing.
"Time's up," Kakashi said calmly. "Take off your gravity bracelets."
Naruto, Sasuke, and Sakura raised their hands at the same time and unfastened the bracelets from their wrists.
In an instant, an overwhelming sense of lightness surged through their bodies, as if every burden had been lifted.
"So light!" Naruto suddenly jumped into the air. "Whoa! My body feels super floaty—like I could fly!"
"That's the effect of gravity training," Kakashi said as he walked forward.
"Your bodies have fully adapted to one-times gravity. Now that the bracelets are off, your speed and strength should have increased by at least fifty percent."
Sasuke quietly clenched and unclenched his fists. As his knuckles cracked, he could clearly feel the power surging through his body—far stronger than seven days ago.
Sakura tried lifting her arms and jumping lightly. To her surprise, movements that had once been difficult now felt effortless, and her overall coordination had improved dramatically.
"Alright," Kakashi said, sweeping his gaze across them.
"Show me the results of your training. Naruto, you're up first."
"You got it!" Naruto stepped forward eagerly, pulling a water balloon from his pocket and holding it in his palm.
He slowly injected chakra.
Instantly, a vortex formed inside the balloon, the water spinning violently as fine ripples appeared on the surface.
Pop.
With a soft sound, the water balloon burst, spraying droplets that shimmered gold beneath the sunset.
"I did it!" Naruto shouted, pumping his fist in excitement.
"Not bad," Kakashi nodded, a trace of approval flashing in his eyes.
"You've completely mastered the first stage of the Rasengan—Rotation."
"Hehe!" Naruto scratched his head, grinning proudly.
"But this is only the first stage," Kakashi continued, pulling out a rubber ball and handing it to him.
"The second stage is Power. You must compress chakra inside this rubber ball and make it burst directly."
"This is harder than a water balloon—the elasticity of rubber is much greater."
"The third stage is Maintenance and Control. You'll need to form the Rasengan directly in your palm without relying on a ball or water balloon."
"You've only completed the first stage. To truly master the Rasengan, you still have a long way to go."
Naruto's smile faded. He nodded firmly and clenched his fist.
"I understand! I'll keep training and master the complete Rasengan, no matter what!"
"Good. Sasuke, your turn."
Sasuke stepped forward, took a deep breath, and slowly closed his eyes. The chakra around him began to condense.
Zzzzz—
A few seconds later, blue-white lightning suddenly erupted from his body, instantly enveloping him. His hair lifted slightly under the electrical stimulation, and the air itself seemed to vibrate.
Sasuke vanished in a flash, turning into a streak of lightning as he dashed back and forth across the golden beach. Only blurred afterimages remained—his movements far too fast to track.
Five seconds later, the lightning dispersed.
Sasuke stopped, bending forward slightly as he panted for breath. Sweat rolled down his forehead, but his eyes burned with excitement.
"Very good," Kakashi said, nodding in approval.
"You've successfully mastered the basics of Lightning Release: Body Activation. Five seconds isn't long, but it's more than enough at your current level."
"And your Sharingan control has also improved significantly."
Sasuke looked up. His two-tomoe Sharingan spun smoothly in his eyes, no longer stiff or sluggish like before.
"Next," Kakashi continued, "you need to extend the duration of your Lightning Release Body Activation. At the same time, start practicing the chakra shape transformation required for Chidori."
He raised his right hand. Fine lightning gathered in his palm, densely compressed and perfectly controlled.
"The essence of Chidori is the extreme compression of Lightning Release chakra in your hand, creating terrifying piercing power. Combined with high-speed movement, it becomes a one-hit kill technique."
"But for now, your chakra reserves and speed aren't sufficient. Build your foundation step by step."
Sasuke's gaze was resolute.
"I understand."
"Lastly—Sakura."
Sakura stepped forward lightly and took out a small glass bottle. Inside was a tiny fish, its body covered in old and new wounds, barely able to swim.
She held the bottle gently as soft green chakra flowed from her palm, enveloping the fish.
Under the golden sunset, the green glow looked warm and gentle. Before their eyes, the fish's wounds healed rapidly—the torn flesh closed, and its color gradually returned to normal.
Less than a minute later, all the injuries were gone.
The fish swam energetically inside the bottle, even bumping playfully against the glass.
"Basic Medical Ninjutsu—mastered," Kakashi said with clear approval.
"To reach this level in just seven days proves your chakra control talent is exceptional."
Sakura's cheeks flushed as she lowered her head shyly.
"It's… it's still just the basics."
"Next is Genjutsu," Kakashi said.
"Use Demonic Illusion: Hell Viewing Technique on me."
"Eh? On you, Kakashi-sensei?" Sakura froze, nervousness filling her eyes.
"I… I'm not sure I can control my chakra well enough…"
"It's fine. Just try," Kakashi replied calmly.
Taking a deep breath, Sakura formed hand seals. Subtle Genjutsu chakra gathered at her fingertips.
"Demonic Illusion: Hell Viewing Technique!"
A faint ripple of chakra spread toward Kakashi.
For a split second, his vision distorted—the beach, the sunset, the sea breeze vanished, replaced by the image of a massive truck hurtling straight toward him.
But it lasted only an instant.
The next moment, the illusion shattered, and reality returned.
"Not bad," Kakashi said.
"For a Genin, your Genjutsu is already practical. Against someone at my level, you can only daze me briefly—but that alone proves your chakra control is precise and your Genjutsu foundation is solid."
Sakura let out a long breath of relief, a relaxed smile spreading across her face.
"Alright," Kakashi said, looking at the three of them seriously.
"The seven-day special training ends here."
"Your progress exceeded my expectations."
---
[Ding! Seven-Day Special Training Mission Complete!]
[Uzumaki Naruto: Mastered the first stage of the Rasengan, physical abilities greatly improved. Rank increased from D to C!]
[Uchiha Sasuke: Mastered Lightning Release: Body Activation, Sharingan proficiency increased. Rank remains C (Special), progress +40%!]
[Sakura Haruno: Mastered basic Medical Ninjutsu and D-rank Genjutsu. Rank remains C, progress +45%!]
[Mission Reward: System Points ×500]
[Bonus Reward: Uzumaki Naruto has leveled up—D-rank Naruto Card automatically upgraded to C-rank!]
[Special Notice: All three disciples have reached C-rank. Team 7 Bond Effect has upgraded!]
[Bond Bonus: ×1.2 → ×1.5]
---
Kakashi was overjoyed.
Naruto had finally leveled up—and the bond effect had jumped straight from 1.2 to 1.5!
This was a qualitative leap.
"System, display the C-rank Naruto card."
[C-rank · Uzumaki Naruto]
[Quality: C-rank]
[Effect: Stamina +400, Chakra +20%]
[Skills: Multiple Shadow Clone Jutsu, Rasengan (Incomplete)]
[Description: After seven days of special training, Uzumaki Naruto has grasped the prototype of the Rasengan. His physical condition and chakra control have greatly improved.]
"The chakra bonus doubled… and Rasengan unlocked," Kakashi thought with satisfaction.
"And with the bond bonus at 1.5x, all attributes increase by fifty percent."
---
[Currently Equipped]
[C-rank · Uzumaki Naruto]
[C-rank Special · Uchiha Sasuke (Sharingan)]
[C-rank · Sakura Haruno]
[Team 7 Bond Effect Active: All attributes ×1.5]
A powerful surge of energy flooded Kakashi's body. His chakra skyrocketed, filling every fiber of his being.
[Current Status]
[Chakra: 15,300]
[Stamina: Increased]
[Agility: Increased]
[Intelligence: Increased]
[Chakra Control: Greatly Enhanced]
[Special Ability: Free Sharingan activation/deactivation]
Kakashi slowly clenched his fist, a sharp cracking sound echoing.
His chakra had nearly doubled compared to when he first arrived in this world.
And the greatest improvement of all—chakra control.
"…This is incredible," he muttered, calming himself.
He looked at the three students with deep satisfaction.
They had no idea that as they grew stronger, so did he.
This was the power of the system—a perfect virtuous cycle.
"Kakashi-sensei?" Naruto tugged lightly at his sleeve.
"You've been spacing out. What's wrong?"
"Nothing," Kakashi replied with a faint smile.
"I was just thinking—you should be able to handle tomorrow's battle."
"Tomorrow… the fight with that ninja named Haku?" Sakura asked nervously.
"Yes."
Sasuke's eyes ignited with fierce determination.
"I can't wait."
Naruto clenched his fist, brimming with fighting spirit.
"I'll show him what I've gained from these seven days!"
Sakura took a deep breath, her gaze firm.
"I won't hold everyone back."
Kakashi nodded in satisfaction.
"Good. Get some proper rest tonight."
"Tomorrow will be real combat."
"Yes!"
The three answered in unison.