Chapter 2: Special Evolution - Feedback

"Choose Evolution Eight, Special Evolution."

With Shishou's command, the system selected the special evolution.

[Selection successful, Phosphorus Destruction Insect evolution completed, gained special ability: Feedback]

[Can be placed in the Insect Breeding Space for further cultivation. Once a certain number is reached, they can evolve further]

[Note: Phosphorus Destruction Insect is a special insect species. Evolution requirements differ from other insects and require a Bio-Simulation Incubator]

After placing the evolving Phosphorus Destruction Insect into the Bio-Simulation Incubator and storing it in the Insect Breeding Space, Shishou felt content and headed home.

According to the system's feedback, the insects enter a period of dormancy after successful evolution. The duration of this dormancy varies, sometimes lasting a month, other times just a few minutes.

The next day, at the break of dawn, Shishou got up and began his daily physical training.

Chakra is a fusion of physical and spiritual energy, meaning that the better one's physical condition, the greater their chakra reserves. Without a method to enhance spiritual energy or special bloodline, the only way for Shishou to increase his chakra was to train his body extensively.

"1, 2, 3...98, 99, 100."

After finishing a hundred push-ups, Shishou moved on to squats and sit-ups.

After his morning exercise and a shower, Shishou activated the system to check on the Insect Breeding Space. The caterpillar had already emerged from its cocoon, and the Phosphorus Destruction Insect had awakened as well. 

Infusing his chakra into the Insect Breeding Space, Shishou noticed the caterpillar beginning to grow. The Insect Breeding Space required his chakra to maintain, otherwise, the insects would stop developing and eventually die.

Next, Shishou took out the awakened Phosphorus Destruction Insect and placed it in his palm.

[Phosphorus Destruction Insect: Epic nano-toxic insect, can only reside within a living organism. Reproduces by devouring the host's cells. After the host's death, it continues to consume the host to sustain itself but can only survive for five minutes without a host. Exposed to air, it cannot survive more than thirty seconds]

It seems the Phosphorus Destruction Insect's survival abilities have improved after evolution, Shishou thought as he observed the insect in his hand. 

Due to their binding, Shishou could control the Phosphorus Destruction Insect at will and was immune to its destructive effects. Without his command, the insect wouldn't devour anything.

In this respect, Shishou's Phosphorus Destruction Insects were superior to Torune's, as he wouldn't become an untouchable person like Torune.

Feeding it with his chakra, the Phosphorus Destruction Insect quickly began to reproduce. The Aburame clan's chakra allowed their insects to grow and reproduce rapidly, a key aspect of their insect-handling techniques. As a ninja clan member and a transmigrant, Shishou had learned chakra extraction, tree climbing, water walking, Body Flicker Technique, Transformation Technique, and Clone Technique from a young age.

Soon, the Phosphorus Destruction Insect in Shishou's palm grew from a tiny dot to cover a small segment of his finger. As nano-toxic insects, just this small segment likely contained millions of insects.

As his chakra depleted, Shishou felt fatigued—a sign of lacking physical energy. The Phosphorus Destruction Insects only covered two segments of his finger. This wasn't enough!

His goal was to devour the Otsutsuki and gain their bloodline limits, becoming an immortal. The few Phosphorus Destruction Insects he had cultivated with his chakra alone were far from sufficient.

Shishou shook his head, placing the insects back into the Insect Breeding Space, and decided to find a wild animal after school to help him reproduce more insects.

For now, attending school was the priority...

...

After school.

In the Konoha forest.

"Roar!"

A giant brown bear roared at Shishou, furious at the intruder in its territory. The bear swiped its massive paw at Shishou, a blow that could break bones or even kill.

Shishou formed a hand seal, activated the Body Flicker Technique, and appeared behind the bear, tapping its back. In an instant, purple-brown Phosphorus Destruction Insects spread across the bear's back, then its entire body. The bear roared in pain, thrashing wildly. 

Soon, the bear collapsed, its body rapidly consumed by the insects until only bones and skin remained.

"The perfect tool for home defense and assassination," Shishou mused, summoning the insects back.

After devouring the entire bear, the Phosphorus Destruction Insects could now cover his entire hand. 

"Feedback."

With Shishou's command, a surge of pure energy flowed from his right hand throughout his body, instantly replenishing his chakra and strengthening his body, making him feel energized.

"Let's find the next kind animal," Shishou said, searching the forest for another host for his insects.

Three hours later, many animals in the Konoha forest had generously contributed to the growth of Shishou'sPhosphorus Destruction Insects. Thanks to their help, the insects now covered half his body.

"That's enough for today."

"We'll continue tomorrow."

As night fell, Shishou placed the Phosphorus Destruction Insects back into the Insect Breeding Space and headed home, satisfied.