"Upgrade the Infinite River Technique!"

As Yu Guihai recited silently, countless cultivation experiences flashed through his mind. The scenes of ascetic cultivation were like real scenes that had happened in the past. The protagonist was himself, and the hard work and sweat he put in were all felt by him.

dong dong dong

Wow~Wow~

Yu Guihai's heart suddenly beat violently, sounding like a drum. He heard the sound of blood flowing in his veins, like a mighty river rushing to the sea.

This state was even louder than running at full strength like a drum, and even caused him to lose control of his body in an instant.

He felt that his whole body was swollen. Under the skin, blue veins were protruding, and every small branch was clearly visible. These blood vessels were densely distributed on the surface of the skin like the roots of an old tree, looking very hideous and terrifying.

Yu Guihai was not afraid. This was not a case of obsession, but a sudden increase in blood pressure, which caused the blood pressure to rise due to the contraction of the whole body.

This is a process that the blood training class must go through.

For three days, he continuously improved his realm, one level a day, refining his muscles, refining his bones, and today refining his blood.

Compared with the previous two levels, the physical sensation at the blood refining level is not the most painful.

When doing muscle exercises, all the large and small muscles in the body are stretched, and the feeling of soreness is indescribable.

When it comes to bone refining, it's like being under a 10,000-ton hydraulic press, withstanding infinite compression force, compressing your own bones several times, making them harder and transformed.

Within Yu Guihai's body, waves of force were like waves constantly squeezing out of the blood vessels. Heavy pressure penetrated layer by layer, acting on every milliliter of blood.

Under this pressure, the blood in his blood vessels began to be rapidly compressed and became viscous. The red blood cells, white blood cells, and platelets in the blood greedily absorbed various nutrients and cool airflow under the heavy pressure, and rapidly

Metamorphosis in order to adapt to the powerful and viscous new blood.

At the same time, the organs and tissues directly related to the blood receive special treatment and undergo rapid changes.

The heart, blood vessels, bone marrow, etc. have all been strengthened.

Although the changes in Yu Guihai's body were drastic, the transformation was completed in a short period of time. His blood quickly doubled and compressed, and the terrifying network of blood vessels on the body quickly faded away, leaving only a faint trace of light color. In an instant,

Even this trace has completely disappeared.

Yu Guihai opened his eyes and shook hands vigorously, and a powerful feeling of fullness emerged spontaneously. This feeling was not just about strength, but mainly about sufficient energy and energy, as if his body contained extraordinary energy that could support him.

Exploded with extraordinary power.

"Very good, very powerful!"

Yu Guihai carefully felt the changes in his body and showed joy.

Each level of the physical training realm has different emphasis on physical strengthening. Needless to say, skin refining and meat refining.

The level of muscle training mainly improves body flexibility, flexibility, reaction ability, etc.; the level of bone training improves bone strength, which greatly enhances strength, physical strength, defense, etc.

Then, the level of blood refining improves the body's energy supply capacity, endurance, recovery, etc.

Before refining blood, Yu Guihai often felt that his body was insufficient. When he practiced privately, he felt that every time he broke out, he felt that his mind was still unfinished and he was unable to exert his powerful physical strength. Moreover, there would be a period of emptiness after the burst.

This is all because the body's energy supply system can no longer meet the strengthened body needs. This phenomenon is especially obvious in combat.

At this time, he felt a steady stream of powerful warmth nourishing his body. He knew without trying that the side effects disappeared. The strengthened blood system could well supply the body's consumption.

Therefore, the blood refining level is regarded as a watershed for warriors in the physical training realm. Compared with the blood refining level before and after, the strength of the warriors is greatly different.

After refining blood, warriors can not only exert more powerful strength, but the burst time is also longer, far more than that of warriors before refining blood.

After Yu Guihai carefully felt the changes in his body, he summoned the invisible interface.

Name: Yu Guihai

Strength:72

Agility:67

Constitution: 80

Spirit:10

Martial Arts: Drumming Stake (perfect, special effect of space strength), Flying Swallow Stake (perfect), Iron Body Reliance (perfect), Giant Strength Stake (perfect) Eight Gates Vajra Body (not yet started), River Infinite Technique (body training chapter)

fifth floor)

Martial skills: White Ape Arm Fist (perfect), Tiger Roar Fist (perfect), Xiao Fan Yun Shou (not yet started), Thirty-Six Swordsman of the Storm (not yet started), Light Body Lifting Technique (not yet started), Iron Sand Palm (not yet started)

(Not yet started), Twelve-way teasing vaginal legs (Not yet started)

Upgrade points: 0

At this time, his attributes increased significantly. Each level focused on different things.

Muscle training increases strength by ten points, agility by twenty points, and physical fitness by five points.

Bone refining increases strength by fifteen points, constitution by fifteen points, and agility by five points.

Refining blood will increase physical strength by twenty points, strength and agility by seven points each.

The main technique of Jianghe Boundless Jue has reached the fifth level of the body training chapter. His strength has reached the peak of the blood refining level, and he is only one breakthrough away from the next step of refining the internal organs.

Yu Guihai felt that if he wanted to, he could rely on his own cultivation to advance to the level of Zang refining.

However, this kind of improvement will definitely not achieve the same effect as the system upgrade. It is impossible to fully tap every part of the body to the limit through self-cultivation. This is completely beyond the reach of human power.

Therefore, he will not break through on his own, as the flaws that would bring would be too obvious.

After feeling his own improvement, Yu Guihai looked down, and most of the joy in his heart suddenly disappeared.

There was a mysterious jade plate in front of him. However, at this time, the jade plate was full of cracks and had no luster, just like a piece of inferior jade.

The jade plate has been scrapped!

Just before refining the blood, he absorbed the last stream of cool air inside.

The jade plate then broke into pieces. It is not known whether it has a limit on the number of times it can be used or whether it was caused by subsequent damage.

Yu Guihai touched the small defect on the edge of the jade plate and held it firmly.

Click!

The jade plate shattered in response, and soon turned into fine blue-gray dust under his strong grip.

Since this thing is destroyed and cannot be seen by anyone, it would be a disaster to keep it. It is better to completely destroy the corpse and eliminate all traces.

As for its overall structure and the mysterious runes inside, he has already memorized it deeply in his mind. Whenever he encounters similar items in the future, he will definitely be able to recognize them at a glance.

"What a pity!"

Yu Guihai sighed softly, with a look of regret on his face. He stretched out his hand and sprinkled the blue-gray dust gently in the corner.

If he wants to continue to improve in the future, he will have to find a replacement himself.
Chapter completed!