Chakra is a special energy produced by the mixing of spiritual energy and physical energy in human cells.
Generally speaking, a ninja from childhood, adolescence, to adulthood, is accompanied by physical development and mental maturity. It is also a period of rapid growth of chakra in the body.
In adulthood, this growth gradually slows down. When the ninja is old, physically weak, or mentally depressed by a blow, their chakra will drop significantly.
Generally speaking, most ninjas graduate from ninja school at the age of 12, and the years before they reach adulthood are the most critical growth periods in their lives.
Naruto Uzumaki and Nagato Uzumaki started to exert their strength from around the age of 12. In just three or four years, they became ninjas standing at the pinnacle of the ninja world.
However.
When Nagato was young, not only did he spend a lot of Chakra to support the Rinnegan, his legs were disabled early, so he did not develop his potential well.
In contrast, Naruto's situation is much better, but his nutrition did not keep up in his childhood. He ate expired instant noodles and milk every day, which suppressed his physical development, so he was dead last in the ninja school in the early stage.
As for Kisame, he stood out from the crowd since he was a child and grew up smoothly. If it weren't for his status as a low-class person, he would have been promoted to Chunin.
It can be said that at the age of 12, the starting point of the ghost shark is higher than that of Nagato and Naruto.
Therefore, he decided to learn from the experience and lessons of the two, and adopted a scientific method to fully stimulate the potential in his body.
That method is fitness.
Fitness, in the world of ninja, is also a relatively common practice.
Among them, Kumo has the most popular fitness atmosphere. The streets are full of dark-skinned muscular men. Raikage A is a fitness freak, he had barbells and dumbbells placed in the office.
There are also avid fitness enthusiasts in Konoha. Duy and his son ran hundreds of laps around the village at every turn, and when they were done, they did thousands of push-ups and kicks, tossing them hard.
There is also a relatively large gym in Kirigakure, and many ninjas go to exercise on weekdays.
In his previous life, in addition to practicing street fighting, he was also a fitness enthusiast. When he was in his thirties, looks like a high school student, looking very young.
There is another reason why he chose fitness method.
After Kisame devoured Thunder Sabre Kiba, the body's capacity was approaching the upper limit. He realized that if he wanted to absorb more ninja swords, he had to have a stronger physique.
Therefore, fitness is imperative.
Kisame is a resolute person, and when he has an idea, he immediately starts to act.
Early in the morning, he went to the gym in the center of the village, registered for a card at the front desk, and became a long term member.
As soon as he came to the equipment area, there was a hormonal smell coming towards him. To put it bluntly, it is the smell of sweat.
As far as the eye can see, this gym is not luxurious, and even a bit shabby: mottled and dirty walls, chandeliers that light and dark, and old and rusty equipment, the decoration style can be said to be very rough.
The weather in Kirigakure is very humid, so the fitness equipment is easily corroded, and it makes a rattling sound as soon as you get started, but fortunately, the types are quite complete and enough.
Kisame woke up in the morning and ate ten eggs. After arriving at the gym, he started exercising soon.
He first walked to the dumbbell rack. After trying it out, he picked up a pair of 50kg dumbbells, then lay down on the dumbbell bench and skillfully completed several sets.
Boom!
After doing the last action, Kisame threw the dumbbell on the ground, straightened up, and frowned slightly.
He could feel the blood in his chest, tearing, but not very strong.
A dumbbell set of 50kg, is at the level that was great in his previous life, enough to participate in fitness competitions.
But for the 12 year old Kisame, it was still too easy, and there was not much exercise effect.
Sure enough, he still relied too much on his previous experience and did not let go of his past.
In his previous life, the total number of cells in an adult body was between 30 trillion and 40 trillion. In the Ninja World, the average human body has 130 trillion cells, three to four times as many as in previous lives.
As for monsters such as Kisame, the number of cells in the body may be more.
Moreover, with the recovery ability of his body, he must not have to worry about problems such as rhabdomyolysis caused by excessive exercise.
Therefore, Kisame has re-formulated his own fitness strategy:
As long as he doesn't die, practice to death!
With that in mind, he increased the weight significantly and began his second round of training.
In the huge gym, Kisame was sweating like crazy alone, and violently collided with various fitness equipment.
The morning time passed by in a flash.
"Haa!"
Kisame let out a long breath, left the gym sweating profusely, and returned home.
His lunch consisted of a few pounds of beef, a bowl of milk and plenty of vegetables.
Although Kisame's house was dilapidated, his father left an inheritance to him anyway, as he worked as a ninja for two years. He also saved some money for his usual tasks, so he didn't have to worry about food for the time being.
After eating, Kisame narrowed his eyes and took a nap for half an hour.
In the afternoon, instead of going to the gym, he came to the woods by the river to practice taijutsu and ninjutsu.
In this world, ninja taijutsu is divided into many genres, such as "Hard fist style", "soft fist style", "taininjutsu", etc., but the taijutsu practiced by Kisame does not belong to any of the above.
He decided to integrate the skills of unrestricted street fighting in his previous life into his own physical skills, and gradually form a complete system.
It's called "Unlimited Body Style".
What is Unlimited Body Style?
For example, if you are engaged in a battle with the enemy, you first put laxatives in the opponent's food to make them weak, then go to the opponent's door in the middle of the night to beat gongs and drums to make them sleep deprived, and finally arrive at the scene the next day, driving a mud truck. Then lead the truck from the side and wounded your opponent to death.
This is Unlimited Body Style.
Unlimited Body Style is completely based on actual combat. When fighting the enemy, the first thing that comes to mind is "sneak attack, plotting and deception" - these despicable and shameless behaviors are precisely the best way to succeed.
The methods such as sprinkling lime, kicking the crotch, and the mad dog flow method used by Kisame all belong to the category of Unlimited Body Style.
He realized that in this intriguing and dangerous world of ninjas, Unlimited Body Style definitely has a lot to offer.
So, Kisame walked around in the woods, found a tree trunk as thick as a bucket and as tall as a person, and fixed it on the ground to make a wooden stump.
Then, his eyes stared at the wooden stump, imagining it as an enemy who had killed his entire family and was a mortal enemy of him. He quickly gritted his teeth and burned in anger.
His face was flushed, and the anger, hatred and killing intent in his heart were intertwined, like a volcano about to erupt.
"Wraaa!"
Finally, Kisame shouted angrily, like a mad dog, and launched a storm-like attack towards the wooden pile.
Buttonholes, nose picking, crotch kicks, knee bumps, hugs...
All kinds of brutal and vicious moves were used once.
This kind of physical training allows Kisame to instantly enter the "mad dog" state when he fights with the enemy, releasing a terrifying murderous aura, thus preempting the enemy.
Click!
During the high-intensity training process, the wooden dummy finally couldn't bear it, and was broken by Kisame, into two pieces.
Kisame clapped his hands contentedly.
Today's Taijutsu practice is over, and it's time to practice ninjutsu.
Water escape is the absolute strength of Kisame.
According to the anime, his talent in water ninjutsu is at the top, only a few people such as Senju Tobirama, Hanzo, and Hozuki clan can match.
Swish swish.
By the river, Kisame quickly made a few seals with his hands and summoned a translucent blue shark.
The technique of water escape is called water shark bullet.
This is the ninjutsu of Kisame, which uses chakra to condense into shark-shaped water bombs to attack the enemy. Moreover, he can wrap himself in water and glide in mid-air.
Kisame moved in his body, got into the body of the water shark, and rushed into the air. After hovering in the air for a while, like a precision-guided missile, a fierce man plunged into the river and splashed a huge splash of water.
As soon as he returned to the water, Kisame felt very comfortable, as if he had arrived at home.
After swimming for a while, he made sure that there was no one around, he dived to the bottom of the water, and the shark tail lightning whip came out from his back with a thud.
Sizzle.
Lighting flashed under the water, and as Kisame swayed his tail, like a ferocious human-shaped shark, he moved as fast as lightning.
In the water, his combat power can be said to have increased several times. Even if he faces the encirclement and suppression of many enemies, he can easily deal with them or escape.
This made Kisame realize that he must fight in an environment that is beneficial to him.
If there is no favorable environment, create an environment with water escape.
The practice of ninjutsu continued like this until evening.
In addition to taijutsu and ninjutsu, Kisame is also very interested in illusion. After all, that kind of thing should be very useful for sneak attacks, but unfortunately, he really has no talent in this regard.
So he gave up.
Night falls, and the night sky is full of stars.
After going ashore from the water, Kisame wrung out his clothes and returned home.
He ate twenty egg whites in one go, plus some carbs, then dragged his tired body and went to bed early.
Early the next morning.
As soon as Kisame got up, he was surprised to find that the soreness on his body disappeared without a trace.
The recovery period of various human muscle groups is 24 to 48 hours for small muscle groups, 72 hours for large muscle groups, but Kisame returned to his best condition overnight.
He practiced so hard yesterday, but his chest muscles no longer hurt at all.
Kisame came infront of the mirror and found that the two chest muscles visibly became larger.
This kind of talent is simply a one of a kind in Shinobi world.
Therefore, from this day on, every time Kisame goes to the gym, he will practice all the muscle groups in his body, not even missing one of the ceps.
The intensity of his training has also increased day by day, soon outpacing the rest of the gym.
The gym was filled with low-pitched roars and the crashing sound of metal equipment.
A group of Kirigakure ninjas gathered together, looked at Kisame who was exercising alone in the corner, and whispered to themselves.