Taking a deep breath, Li Lin took out a jade bottle from his bosom, and a Marrow-Cleansing Pill appeared in his hand. He knew that if his qi could make another breakthrough, he would be able to reach the level of a martial warrior, and his spirit level would surely follow.

Looking at the Marrow-Cleansing Pill in his hand, Li Lin smiled slightly. Now, making these pills was easy for him. Smelling the refreshing fragrance, without any hesitation, he threw the pill into his mouth.

As soon as the pill entered his mouth, Li Lin felt a warm and pure energy spread out within his body. Immediately, he began to circulate the Yin Yang Spirit Martial Art.

He was used to this pure energy. Initially, this energy could help him break through two levels, but later, it could only enhance one level, and then only half a level.

Including this pill, Li Lin remembered he had taken seven Marrow-Cleansing Pills in total to advance from the first to the ninth level of the martial disciple, costing 350 gold coins. Fortunately, he now had a way to earn gold coins, or else it would have been a disaster.

350 gold coins were a considerable sum. If other families knew that this amount could elevate their young disciples from martial disciple to martial warrior, they would probably be willing to spend it to upgrade all their young generation to the warrior level.

Li Lin's expression gradually calmed down. He overlapped his hands to form a seal and his breathing became steady. The qi inside his body began to refine the energy from the Marrow-Cleansing Pill.

Atop a mountain peak nearby, Uncle Jiang, the old servant, appeared and watched Li Lin, murmuring, "In just one month, he's about to break through to martial warrior again. The Yin Yang body truly is incredible."

Time passed, maybe three or four hours. The calm air around suddenly started to fluctuate, with ripples of energy seeping out from the air and surrounding Li Lin.

Li Lin felt that as he refined the pill's energy, this energy turned into qi, which was visibly expanding the scale of qi within his body. Inside his dantian qi sea, subtle changes were occurring.

The energy of the Marrow-Cleansing Pill continuously transformed into qi, flowing through his meridians and eventually entering his dantian qi sea.

Finally, Li Lin felt that his dantian qi sea was filled to the brim with qi, and his entire body's meridians were also full.

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The energy of the pill was not yet completely refined. As the refining continued, Li Lin found that his body's qi had reached a peak.

Li Lin's face began to twitch as the expansion of qi caused his meridians to spasm slightly, bringing intense pain.

Li Lin had experienced this when he officially became a martial artist. He took a deep breath, changed the hand seal, and activated the Yin Yang Spirit Martial Art. The abundant qi inside his body surged like a violent suction force, rapidly contracting towards the dantian qi sea.

The qi rushed into the already full dantian qi sea, causing it to expand dramatically, and intense pain made Li Lin break out in a cold sweat.

Enduring the pain, knowing this was the beginning of the breakthrough, he controlled all the qi in his meridians and compressed it forcefully.

"Boom!"

A muffled sound quietly echoed within his dantian qi sea. Simultaneously, Li Lin felt an indescribable comfort as a force, several times larger than the original qi, filled his meridians from the dantian qi sea.

Feeling the qi inside, Li Lin smiled slightly. Under the extraordinary Yin Yang Spirit Martial Art, he finally broke through to the first level of martial warrior.

"Is it time for a breakthrough?" At the same moment, Li Lin's lips curled up, feeling the spiritual energy in his mind, which had been circling for a long time, beginning to fluctuate.

Then, Li Lin slightly changed the hand seal, and the active spiritual energy in his mind began to transform, seeming to become more solid.

Moments later, Li Lin could clearly feel that the spiritual energy in his mind and the surrounding space had an invisible and profound fluctuation.

Invisible energy from the surrounding space started to pour into his mind. Li Lin felt this invisible force, seemingly a power of heaven and earth, rapidly expanding the spiritual energy in his mind.

Under this expansion of spiritual energy, Li Lin felt a bit dizzy, but at the same time, his senses were undergoing a transformation, making everything around him clearly perceivable.

"Click..."

A clear sound rang in Li Lin's mind, followed by an overwhelming spiritual force enveloping his body, eventually retracting back. At the same time, Li Lin felt the spiritual energy in his mind had expanded several times, and his whole body felt indescribably comfortable.

"Whew..." Li Lin exhaled a long breath, feeling the abundant qi in his body and the spiritual energy in his mind, with a slight smile on his lips.

"I've broken through, and it was quick." On a distant mountain peak, Uncle Jiang smiled slightly and then disappeared from the spot, unbeknownst to Li Lin.

Li Lin continued to sit cross-legged, with his eyes closed, calming his mind and spirit, then examining the inside of his body. Inside his dantian qi sea, the area had greatly expanded, with a glowing gas slowly rotating inside – his internal qi.

Upon examining his mind, Li Lin found a space similar to a qi sea in his brain, where a spiritual force, several times more majestic than before, was residing.

Examining all this, Li Lin's heart moved, and he controlled the qi in his dantian qi sea. A yellowish qi quickly condensed in his right palm, while in his left palm, spiritual energy formed a faint flame dancing.

"Finally, I've broken through." Li Lin smiled slightly, a sharp light flashing in his dark pupils, which gradually dissipated after a few seconds.