Chakra Heart

The Chakra amount that had been troubling him was successfully resolved at this moment. In just a few seconds, he absorbed all the Chakra within the little pig, and his total Chakra now surpassed the level of an average Chunin.

After he absorbed the little pig's Chakra, the little pig began to refine Chakra again, and blue Chakra was reborn from its body.

"This is simply an automatic Chakra generation device, a biotechnological marvel. As long as there's an energy supply, it can refine Chakra limitlessly," Yu excitedly said.

"It's like a Chakra... heart."

Looking at the little pig in his hand, Yu had a bold idea: if he implanted the little pig into his own body, wouldn't that give him an organ that could provide infinite Chakra? Moreover, it would actively refine Chakra without his intervention, only requiring him to inject energy into the little pig's body.

With this idea, Yu felt it was very feasible. Without much hesitation, Yu decided to go through with it. He dared to put metal into his body, let alone the little pig, which was already a part of his body.

"But the little pig is too big right now."

The little pig was currently the size of a basketball, larger than his head. Normally, it definitely wouldn't fit inside his body. That would only be the case if he could accept a belly like a woman eight months pregnant.

Of course, Yu couldn't accept that state; he still cared about his appearance.

"Ah, my brain is too silly!"

Suddenly, he slapped his head. He had fallen into a mental block again.

He was a Slime, and the little pig was also a Slime. So, weren't shrinking and transforming things he could do at will?

After giving the little pig a command to shrink, its body immediately began to change shape, eventually becoming a Slime pig the size of an adult's fist. This was the little pig's smallest state.

Next, Yu performed another chilling action. A sharp surgical knife was inserted directly into his chest. The sharp knife was pulled downwards, and the flesh was cut open as easily as slicing tofu.

Looking in the mirror, Yu opened his chest, carving out a hole the size of the little pig.

His heart and the surrounding flesh and blood were cut out and casually discarded. If anyone saw this scene, they would absolutely believe Yu was a reincarnated demon.

The final step was to place the little pig into the hole in his chest and then close the wound. No stitches were needed. After about two minutes, Yu's chest wound healed.

Thus, in just a few minutes, a human modification surgery was completed, and it was very successful with no rejection reaction.

For Yu, he didn't feel any pain throughout the entire process. It only consumed some energy when the heart and flesh were cut off and when the wound healed. He could replenish it by eating a good meal later.

Next, Yu sat cross-legged on the ground. He was waiting for his body to adapt to the little pig's presence. His current body possessed a powerful mimicry ability, so his body would adapt to the little pig's presence on its own without him needing to manage it.

At this moment, a message appeared in his consciousness: he could now devour the little pig, allowing it to completely merge with his body, and he would also gain all of the little pig's abilities.

After thinking about it, Yu decided not to do so. If he devoured the little pig, he would gain a Chakra amount exceeding the Chunin level, but he would still need to refine Chakra himself afterward. Wouldn't that negate the little pig's most powerful characteristic?

Now, without completely devouring the little pig, he could possess its total Chakra amount, and with the little pig actively refining Chakra, wouldn't that give him 2x the Chakra?

With the little pig, he could continuously produce Chakra without doing anything. The benefits of devouring it versus not devouring it were completely...

"If I stored a few more little pigs in my body, and when the Chakra production speed exceeds the Chakra consumption speed, wouldn't that mean I have infinite Chakra?"

This idea was definitely not a wild fantasy; it was entirely possible.

"So, next, I need to find a bloodline that can rapidly refine Chakra for the little Slime to fuse with. Then, I won't need to worry about total Chakra amount; I just need production to exceed output."

"I'm a genius, hahaha!"

However, he couldn't rush this now.

He needed to find a place to test his new strength.

Yu was already impatient. After being a couch potato for so long, he had to make a comeback.

Inside the Uchiha Training Ground.

Sasuke had already gone to the Ninja Academy. Now, he was the only one in the training ground.

Feeling the abundant Chakra in his body, this sensation was particularly intoxicating.

Facing the sandy ground ahead, Yu took a deep breath and began to form hand seals.

Fire Release: Great Fireball Technique

With a total of thirty-three seals, Yu completed them in less than eight seconds. This was thanks to his practice during this period. Although he couldn't use ninjutsu, he never neglected practicing hand seals.

As the hand seals were completed, the Chakra underwent a mysterious transformation and surged from his mouth. The next moment, he exhaled, and a basketball-sized fireball shot out from his mouth towards the front.

"Boom..."

The fireball hit the wooden target with a dull thud. The specially made target was not broken by Yu's attack, but the considerable power generated by the fireball hitting the target was evident.

Yu walked over and touched the target with his hand, clearly feeling the scorching heat.

"If this fireball hit an ordinary person, they'd be dead or crippled," Yu marveled.

Although the Great Fireball Technique was only a C-rank ninjutsu, it was an exclusive Fire Release ninjutsu of the Uchiha clan. Its power was formidable, and its potential for growth was extremely high.

In the anime scenes of the Great Ninja War, the Great Fireball Technique used by Madara Uchiha was comparable to S-rank ninjutsu.

Therefore, Yu naturally wanted to learn this ninjutsu. This was also the first time he had used the Great Fireball Technique. While it couldn't compare to a powerhouse like Madara Uchiha, the effect was still good.

Currently, this was the only offensive ninjutsu he knew. It wasn't that he couldn't learn others, but he didn't want to. Learning too many techniques would prevent him from unleashing their true power. He wanted to master one technique before considering others.

Of course, if he awakened the Sharingan, it would be different, but he couldn't help it; he didn't have the Sharingan. Kakashi, relying on the Sharingan, had learned over a thousand ninjutsu, which made him very envious. He also wanted to learn so many ninjutsu.

Besides the Great Fireball Technique and the basic Three Body Technique, he had also learned the Body Flicker Technique.

The Body Flicker Technique was on a similar level to the Three Body Technique. It had never really entered the spotlight until a certain genius appeared, and the Body Flicker Technique re-entered the vision of ninjas.