In a blink of an eye, it was time for the second midterm exam of the third year of junior high school, and while other students were working hard to prepare for the exam, Li Qiang was a little idle in the classroom. After all, he has already entered the provincial team and does not need to take the high school entrance examination anymore. However, Li Qiang still listens carefully to the lectures every day, especially the English classes that will be helpful in the future. Li Qiang completed all the homework and exams in English class without falling behind.

After three months, Li Qiang's bone refining technique was finally completed. Sure enough, the cultivation of the Yi Jin Sutra became more and more difficult at each subsequent stage, and Li Qiang spent three times as much time on the initial level of refining the Bone Refining Technique as he did at the beginning of the Refining Muscle Technique, and he didn't know how long it would take to cultivate to the long-awaited Refining Essence Technique.

However, Li Qiang's three-month cultivation has also been quite effective, and now Li Qiang's height has shrunk to only 1.82 meters, but the bones of his body are not much stronger than when he was at the beginning of the winter vacation, and now when Liu Shiyu and Li Qiang play, they don't dare to prevent Li Qiang's impact at all. Because every time I was hit by Li Qiang, I felt as if I had been hit by an iron giant, and I was in pain. This can also be seen in the appearance, Li Qiang's arms are thinner than before, but if you look closely, you find that Li Qiang's muscles are not missing, but every muscle, a joint is tightly spliced together with the bones, like a work of an art master. In the past, when Li Qiang cultivated the muscle refining technique, the muscles exploded, and when he cultivated to the muscle refining technique, it became streamlined, but now, Li Qiang's muscles have exceeded this realm, and his strength is restrained. You just feel that the meat in each place is just right, a little more is too much, and a little less is too little. And when Li Qiang walks, the muscles in his body no longer shake obviously, as if they have been firmly born on every bone.

Li Qiang's weight has increased slightly, to 90 kilograms. This is because Li Qiang has absorbed a lot of calcium in the past two months during the cultivation of the Bone Forging Technique, and the weight of his bones has increased. Li Qiang knew that his muscles and tendons did not change much, but they became more porcelain, so his arms and thighs became slightly thinner. The proportion of this shrinkage is exactly the same as the proportion of height shrinkage, so Li Qiang looks like a scaled-down version of Li Qiang three months ago.

Now, Li Qiang can finally start cultivating the middle level of the bone refining technique. Turning over the ancient Yijin Sutra left by the old monk in his mind, in the first line of the volume of the bone refining technique, the scripture reads:

"The bone is like steel, the pith is like jade, the bone without the marrow is sluggish, and the marrow without bone overflows. This method can be called "chalcedony gong". ”

The next scripture says that the object of cultivation at the middle level of the Bone Refining Technique is the bone marrow in the bones. The marrow is the foundation of blood, and it is the hematopoietic function of bones that meets the blood needs of the human body. After cultivating the middle level of the Bone Refining Technique, the quality of the bone marrow in the bones will be drastically improved.

Li Qiang's mind went deep into the bone marrow and began to practice chalcedony. Slowly, Li Qiang could sense that his bones slowly began to emit bursts of life energy, turning into blood and flowing into his body.

"Life is so wonderful!" Li Qiang sensed that this had been happening before, but he had never felt the life process, and a feeling of faint compatibility with heaven and earth came to his heart. Li Qiang's mood has also improved unconsciously.

As his cultivation slowly deepened, Li Qiang found that the life energy emitted from this bone marrow was also slowly nourishing his bones, improving their hardness and toughness. That's right! The first level of bone refining is to forge bones from the outside in. However, it is too rigid and easy to break, and the solitary sun is not long. Excessive emphasis on bone hardness can lead to increased brittleness. When you reach the middle level of bone refining, you can use chalcedony to slowly nourish your bones from the inside out and increase their toughness.

Moreover, as Li Qiang continued to cultivate, he found that his understanding of the origin of blood and the flow of blood and the degree of induction were slowly increasing. Li Qiang finally understood why he had to cultivate the bone refining technique before he could cultivate the internal refining technique. It turns out that refining the intestines is a science that nourishes the five internal organs, and in order to be able to nourish from the inside out, it must require high requirements for blood induction. And to do this, there must be a certain degree of control over the origin of the blood. That is, to master the "pith" in the bones.

The corners of Li Qiang's mouth showed a smile that was not easy for others to notice.