"Brother, rest well, take your time in everything. The Peachtree Fairy brother and sister persuaded.

"It's okay, I'm physically strong, I just have to cultivate to the limit, and I can't do what people can't do, so that I can surpass ordinary people. An Xiaoyu said with confidence.

"Well, brother, we are confident that you will succeed. After the peach tree fairy finished speaking, the branches stroked gently, "I'll help you massage and recover your strength." ”

After eating a few peaches and resting for an hour, An Xiaoyu stood up and stretched: "Thank you, big brother, I have recovered, and now I can practice the second step of loosening my hips and opening my sacrum." ”

An Xiaoyu first practiced loosening the hip joint.

The two feet are parallel and slightly wider than the shoulders, the heels are opposite, the toes are facing outward to the back of the body into a "one" word, bend the knees and slowly squat to the level of the thighs, squat with both hands together and slowly press down to the lower dantian, and then lead the vitality upward by the Baihui acupoint to drive the body to rise, when the body rises, put the two palms in front of the lower dantian and draw an arc counterclockwise, the two palms are separated and the palms are lifted upwards as if supporting a heavy object, the head is back to look at the sky, and the intention is to keep the lower dantian when inhaling.

In such a day, An Xiaoyu did it 4,900 times, and finally felt that the hip joint, which could not be loosened normally, finally showed a hint of loosening, and immediately turned on the dantian vitality and struggled to impact the hip joint. After half an hour of hard work, he finally broke his hip joint open the gap half a finger width, and An Xiaoyu only felt that the dantian area had expanded in an instant, and the space for accumulation of vitality had increased by a quarter.

An Xiaoyu rested for a while and continued to practice opening the sacrum.

Stand with your feet parallel to the same width apart as your shoulders, buckle your toes to the limit of your body and become a "one" word, hold your hands round in front of your body, and when your body leans forward to the limit, you will be led by the large vertebrae to recycle, and you will inhale with the intention of going down the dantian.

In such a day, An Xiaoyu did it 4,900 times one after the other, and finally felt that the tailed sacrum, which could not usually move, became flexible and free, and could swing as freely as the tail wanted, and even shook the circle as he wanted.

Seeing that An Xiaoyu had cultivated the first two steps in five days, Mi'er and the three were very happy.

After resting for an hour, An Xiaoyu began to practice the third step, loosening his knees and touching his feet.

Stand with your feet together, your hands on your hips, your feet relaxed and down, trying to kneel your knees towards the top of your feet. Lean your hips forward so that your thighs are in line with your torso, your chin is buckled, your head is up, and the longer you kneel, the better.

When you reach the limit, you will slowly stand up with your knees raised, your hips will be reduced and your hips will be leaned up, your vitality will be pushed up from the Baihui acupoint, your chin will be leaned against your chest, and your whole body will be centered on your knees.

In such two days, An Xiaoyu knelt together 4,900 times, kneeling for longer and longer, and his knees were half closer to the surface of his feet, and he finally reached the small point of loosening his knees and touching his feet.

When An Xiaoyu stood up, he felt a stream of vitality rushing from his knees to the soles of his feet, and he was suddenly in a very happy mood.

After seven days of purgatory-like cultivation, An Xiaoyu has reached a small success in the first three steps of the "Bone Refining Technique", and the strength of his waist, leg flexibility, and flexibility have been greatly improved.

Then came the final step, and the most difficult cultivation, speed, strength, and hardness.

An Xiaoyu rested for a long time, replenished his energy with Yuan Shi, and exchanged with Mi'er and Peachtree Fairy brothers and sisters to discuss his cultivation experience, and had new ideas for future cultivation.

The fourth step is to grind the leg and kick the pier.

Leg grinding can exercise the firmness of the shin bones of the legs. In particular, the tibia of the calf is relatively fragile and is often the key target of the enemy's attack, so An Xiaoyu decided to cultivate the hardness of the leg bone first.

An Xiaoyu chose a stone stalactite with uniform thickness up and down, cut it into three pieces with palm force, sat on one, put one on his feet, and hung his legs in the air, and then put the remaining stone stalactite weighing three hundred catties on his two legs, and pushed it with both hands, so that the stone stalactite like a stone crush rolled back and forth on his legs.

Every time the stone mill rolled, the pain in the leg bones came from the heart, the blood stained the stone mill red, and the beads of sweat flowed down An Xiaoyu's face and neck to the front chest and back, and the wet hairs were stained on the body, but An Xiaoyu gritted his teeth and persevered, persevering, only relying on the hard body to resist the friction of the stone mill, and did not need to resist with vitality.

After grinding a thousand times, An Xiaoyu felt that the strength of the three-hundred-pound stone mill had become smaller, and despite the blood on his legs, he made another stone mill weighing five hundred catties and continued to cultivate.

After grinding it three thousand more times, he changed to a thousand-pound stone grinder and continued to grind, and his skin reached the limit, but An Xiaoyu felt that the strength of his leg bones was also strengthening.

Three days later, An Xiaoyu threw up 2,000 catties of stone grinders, soared into the air, swept with one leg, and the stone grinders turned into powder.

After 9,999 leg grinding, An Xiaoyu felt that the tibia of his leg had become as hard as steel, the muscles were full of elasticity, the steel knife was broken, and the iron hammer smashed the iron hammer.

Kicking is the speed and strength of the toes and legs. The toes are shorter than the fingers, clumsy, and the vitality is not easy to reach control, so it is more important to focus on practice.

An Xiaoyu made five hundred-pound stone piers, hung them on the five toes with branches, and first practiced the pulling force of the toes.

One leg stands upright on a high place, the foot hanging on the stone pier lifts up and kicks towards his face, and then changes to the other leg after getting tired, and after repeated practice, each toe can pull up five hundred pounds of stone pier.

An Xiaoyu threw several stone piers into the air, and used his toes to kick the stone piers into the air again in turn, practicing the speed of his feet and the strength of his toes. Kicked and smashed a batch of stone piers, and replaced them with another one.

Two days later, the stalactites in the cave were all cut down and turned into powder.

After twelve days of continuous hellish cultivation, An Xiaoyu's "bone refining technique" finally came to fruition.

Sitting on the branch of the peach tree fairy, An Xiaoyu was eating fresh peaches while chatting with Mi'er, peach tree fairy, and peach blossom fairy.

"Little Stone, are you going to cultivate 'Earth Shaking and Vertigo' next?" Mi'er asked.

"In the past twelve days of my cultivation, I feel that there are signs of breakthrough again, I will try to see if I can break through, if I break through, I will have a greater grasp of the cultivation 'earth-shaking vertigo'. An Xiaoyu said.

"Brother, I have absolute confidence in you, in front of you, there is no such thing as failure. The Peachtree Fairy brother and sister smiled.

"Hey, I'll try. An Xiaoyu also smiled.

An Xiaoyu took out a bunch of Yuan Stones, frantically absorbing the Yuan Qi, under the dual action of Yuan Qi and wood energy, the injured part quickly healed, formed a pale golden blood scab, and finally even the scars disappeared, which shows that the heart of the peach wood is very strong in the recovery of injuries.

An Xiaoyu took out a jade bottle, looked at it in his hand, gritted his teeth, and poured out three drops of divine blood, the divine blood entrance, and the thick energy exploded in An Xiaoyu's body.

An Xiaoyu hurriedly ran the remaining wood energy when refining the heart of the peach wood, the seeds in the liver seemed to move, a stream of green entered the dantian from the liver, and the vitality flowing through the meridians was also faintly green, protecting the vital points around the body, suppressing the restlessness of the divine blood, and the energy of the divine blood was slowly guided and smoothed, entering the dantian and the major acupoints that had been opened up, and storing them in it, the dantian and the major acupoints became more extensive under the refining of the divine blood.

At the same time, An Xiaoyu's skin, muscles, bones, and meridians are stronger and stronger.

Due to the twelve days of purgatory-style cultivation and the refining of divine blood, An Xiaoyu's dantian expanded a lot, and the vitality in the dantian was more abundant and condensed, and after two hours, he finally broke through the Huagai acupoint and broke through to the realm of a third-order demon master.

An Xiaoyu combined the cultivation of "bone refining technique" and compared the key points of the "earth-shaking vertigo" method, and gradually had a new understanding of "earth-shaking vertigo".

"Ground Shock" is actually a skill that attacks the ground with sound waves to cause the ground to shake and stun enemies.

Sound waves can travel freely through the earth, rivers, seas, and air.

The earth, rivers and seas can be compressed like the air, and when the body violently hits the earth, the violent energy release causes the soil or rocks in the impact area to squeeze and expand alternately, resulting in rapid cracking and movement, and this disturbance constitutes a wave source.

"First-level seismic stun" is a longitudinal wave formed by the wave source as the center, the longitudinal wave is perpendicular to the wave source, is the propulsion wave, from the wave source break to the surrounding rapidly, alternately squeezing and stretching the soil, rocks and other materials they come into contact with, soil and rock particles in the longitudinal wave propagation direction forward and backward vibration, so that the enemy within a radius of ten zhang standing unsteadily, can stun the enemy for three seconds.

"Second-level seismic vertigo" is a transverse wave formed by the center of the wave source, the transverse wave propagates outward in a circular shape with the sound source as the center, causing the object to shear and twist, and the soil and rock particles shake left and right in the propagation direction of the transverse wave, and the tremor is intense, making the enemy within a radius of 15 zhang stand unsteadily, which can stun the enemy for five seconds.

"Level 3 seismic vertigo" is a hybrid wave that is excitation by the meeting of longitudinal and transverse waves in propagation. Due to the difference in the time of longitudinal wave and transverse wave, the chaotic waveform is superimposed on each other, squeezing, stretching, shearing, and twisting the earth, and the complex waveform makes the soil and rock particles oscillate back and forth in the propagation direction of the mixed wave, and the destructive power is more powerful, which can make the enemy within a radius of 20 zhang stand unsteadily, and can stun the enemy for seven seconds.

"'Shaking the ground and vertigo' is quite interesting, the opponent is shocked and staggered, leaning forward and backward together, it must be quite funny. An Xiaoyu understood the effect of "shaking the ground and dizzying", and happily began to cultivate.

The key to "earth-shaking vertigo" is to concentrate the whole body energy formed by the "iron wall" into the legs, generating a sonic attack.

An Xiaoyu jumped up from a high place and stepped on the ground in front of him, in the air, wrapped in loess armor, the energy quickly transferred to his legs and feet, but the energy was not completely in place, his feet had already landed, and he failed.

The height of the jump is not enough, the time of flight is short, and it is too late to transmit enough energy to continue.

An Xiaoyu appeared too early, and the distance of his body rushing forward was short and failed.