Holy Orchid Institute's Training Ground.
This was the ideal place for Ye Xinghan to practice without being noticed. Scattered around him were torn water balloons and rubber balls.
Now, he was attempting to replicate the most famous technique known to all weebs: Rasengan!
When he was in the world of One Piece, Ye Xinghan couldn't learn this move because there was no equivalent to 'Chakra'. One Piece had Haki, a manifestation of willpower, which was quite different from the energy required for Rasengan. However, in the world of *Tales of Demons and Gods*, controlling soul energy is fundamental for all practitioners. This made it possible for Ye Xinghan to mimic Naruto's learning process for Rasengan.
The technique's composition breaks down into three key steps:
1. Rotation. The user must spin their chakra in multiple directions simultaneously. Practicing with a water balloon helps track progress; the step is completed when the balloon bursts from the churning energy.
2. Power. Increasing the volume and density of the chakra. Here, a rubber ball is used, which lacks water and has a thicker shell. Success is achieved not just by rupturing but by completely destroying the ball, ensuring the energy is sufficiently concentrated.
3. Containment. Combining the previous steps into a contained sphere. A wind balloon aids visualization of the intended shape.
Ye Xinghan had already mastered the first two steps in just two days, thanks to his extensive research into ancient empire cultivation techniques, which had significantly enhanced his energy control proficiency. However, his 7-year-old body posed a major challenge, requiring him to use half of his restaurant earnings to buy Recovery Pills.
Mastering the first step was relatively easy as it involved directing energy in all directions. The second step, however, was much harder; he consumed most of his Recovery Pills during this phase, needing one for each attempt with the rubber ball before finally succeeding after 35 tries.
Now, he was tackling the final step, containment, which proved to be far more challenging. The wind balloon either popped or moved, indicating his mastery wasn't yet at the level needed for a fully effective Rasengan.
*POP*
"GO*DAMN!" Ye Xinghan shouted in frustration, throwing the torn wind balloon to the ground.
"I only have around 10 recovery pills left, sigh." He took a deep breath to calm himself. The constant learning had drained him both spiritually and physically, leading him to close his eyes for a moment.
'This tiny body doesn't have enough energy to maintain the use of Rasengan, although I've been practicing cultivation techniques, it's still far from Naruto's capability with his Uzumaki bloodline and the nine-tails fox,' Ye Xinghan thought.
'Maybe I was too hasty with my progress? Should I wait a few years to try again when my soul energy reserves (Dantian) grow larger?'
Then, an epiphany struck him.
"HAHAHAHAHAHA...." He laughed, thinking of Naruto's son, Boruto.
Ye Xinghan grabbed another wind balloon and concentrated once more.
'If my energy isn't enough, how about reducing the size of Rasengan?'
He gathered all his soul energy into forming a ping-pong-sized ball, controlling the direction and compressing it maximally.
Sure enough, the wind balloon didn't explode! Ye Xinghan felt the immense power emanating from this tiny sphere.
"Gasp... Gasp.." He breathed heavily; this mini Rasengan had completely drained his energy. He quickly took a Recovery Pill.
"Whoof, no wonder I couldn't form a normal-sized Rasengan. Even this tiny thing exhausts me completely!" Ye Xinghan said with a smile, "Well, it's time to see this little guy's power."
He approached a sturdy tree, about 50 cm in diameter.
*'Alright, this tree is strong enough. Its wood is really hard. Let's try!'*
As soon as the balloon touched the tree:
*CRACK!!* *CRACK!!* *BOOM*
Ye Xinghan was astounded. The tree didn't just dent; it split in two!
"Holy cow, my mini Rasengan contains so much power!" he exclaimed.
From his memory, Boruto's mini Rasengan only made a small dent, but this one had the potency of Jiraiya's regular Rasengan!
"Hehehe, probably because of the energy difference. In the TDG world, cultivation techniques refine natural energy, making it much purer than chakra! It's similar to 'Sage Mode,' but without the impurities that could turn one into stone if not handled properly."
This was a significant discovery. This mini Rasengan could severely injure anyone below Silver Rank!
With his speed, it was like having a mini version of the Yellow Flash!
"Oof, looks like the sound of the falling tree was really loud. I should get out from here." After saying this, Ye Xinghan vanished.
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**Evening, Snow Wind Family's Training Ground**
Three figures were sparring inside the building: Head Servant Feng, Gyutarou, and Ume. Ye Xinghan had instructed Gyutarou to spar with Feng to adapt to the gravity bracelet. Ume, who had started school a week ago, joined her brother upon returning home. Ye Xinghan had told them to give it their all, even with the intent to kill Feng, which made Feng shake his head helplessly.
The servants at Ye Xiao's mansion snickered, amused by the idea of a gold-ranked demon spiritualist being reduced to a nanny.