No Longer Stuck

In the sealed space, after Naruto figured out how to measure Chakra, he immediately set to work. He pulled out a set of red stone lamps from the system and headed to Kurama's side of the space.

Kurama watched in confusion as Naruto began laying out the lamps in a meticulous square formation on the ground. The 100 red stone lamps glowed with a faint, eerie red light, creating a beautiful but strange sight.

"What are you up to now, kid?" Kurama asked, irritation lacing its tone. "One moment you're training, and the next you're playing with these lamps. Are you slacking off?"

Naruto looked up from his work, his expression serious. "Big Fox, I'm doing something that could change the ninja world. Remember how I talked about measuring Chakra?"

Kurama, puzzled and unimpressed, responded, "What are you rambling about now? Measuring Chakra? Hashirama and Madara didn't bother with such trivial matters. Why would creating a measurement system make you stronger?"

Naruto, undeterred, pressed a hand on one of the lamps and closed his eyes, focusing on channeling his Chakra. As he did, the lamps began to light up, one by one. When twenty lamps were glowing, Naruto's face lit up with joy.

"That's it!" Naruto exclaimed. "Twenty lamps should represent the amount of Chakra needed for a normal ninja to perform the Clone Technique. This means…"

Naruto paused, his eyes widening as he calculated. "Based on my current reserves, I can perform the Clone Technique up to 400,000 times without relying on the Tailed Beast's Chakra. This amount is incredible!"

Kurama, observing from its cage, was skeptical. "Kid, what's the point of all this? I don't see the need to calculate your Chakra. Besides, you can't even measure my Chakra."

Naruto was taken aback. "You don't want to know how much Chakra you have? Who would? Besides, this is to help me practice Ninjutsu and could even be used to detect Chakra levels in enemies."

Kurama snorted. "Whatever. I doubt this will be of much use."

"Just wait and see!" Naruto insisted, clearly excited about his new system. "I'll show you how useful this can be!"

With that, Naruto exited the sealed space and returned to the grove. He picked up some branches and began drawing on the ground, scribbling what seemed like random calculations and symbols. The Third Generation Hokage watched this with growing frustration through his crystal ball.

"Why is this kid not getting it?" he muttered, rubbing his temples. "He's been at this for days. I thought he was a genius, but he still can't master the Clone Technique? And now he's drawing strange symbols on the ground?"

Third Generation watched as Naruto's scribbles included what looked like a lunch menu. "Is he really just thinking about what to eat for lunch? Unbelievable."

Naruto, lost in his calculations, was occasionally interrupted by thoughts about his next meal. He then focused on testing his theory with Kurama's Chakra.

"Big Fox, how does it feel?" Naruto asked as he began forming seals, his eyes closed in concentration.

Kurama's voice came through, "Form the seal, and I'll guide you."

Naruto nodded, taking a deep breath and recalling the amount of red stone Chakra he had just measured. As he formed the seal, both orange and blue Chakra appeared, mixing together.

"Fifteen red stone lamps," Kurama said, assessing the situation. "Feel it for yourself."

Naruto didn't immediately release the Ninjutsu. Instead, he let the Chakra flow through him, getting used to the mixed feeling of his own and Kurama's Chakra. It was different—like a glass of water versus a sip of chili oil.

After some time, Naruto opened his eyes, formed the seal, and shouted, "Clone Technique—"

Bang bang bang!

Two clones of Naruto appeared, identical to the original.

"I did it!" Naruto cheered, delighted by his success. He spun around, pulling his clones into a celebratory dance.

Just then, a strange voice echoed in Naruto's ears. "Idiot."

Naruto stopped mid-spin, looking around for the source of the voice. His excitement faltered as he wondered who had just called him that.