In the days when he returned to the academy, Lin Yu's daily life was not only to guide the disciples of the fourth group to practice swordsmanship, but also to practice in retreat.

The pressure in his heart was huge, it turned out that on the second day after the end of the fair, Nangong Yuehuo hurriedly brought him the news of the promotion from the head of the Nangong family, and the news that he had the Martial King Ruins Map on his body was released by the Batian Sect, and the four major forces had already sent the top ten disciples of the inner gate into Pancheng, and many other forces were involved.

The sky above this pan city seems to have formed a big net, which may fall at any time.

Seven days later, Lin Yu suddenly announced to the fourth group that he was going to retreat and cultivate for a period of time.

In the cultivation room of the small courtyard, Lin Yu sat cross-legged with his eyes closed, the dazzling spiritual light on his body was constantly shining and beating, and in the azure spiritual power, purple thunder was faintly visible, and there were electric arcs on his body from time to time.

Suddenly, the spiritual power in the cultivation room frantically poured into his body, and the Spirit Gathering Array was running rapidly, and the endless spiritual power in the air was incorporated into the Spirit Gathering Array, and then entered Lin Yu's body.

Lin Yu sat there, motionless, wrapped in spiritual power, like a huge light cocoon, and the thunder could be faintly heard in the light cocoon.

In Lin Yu's body, the eighth spirit vein was slowly condensing, and the prototype of the eighth spirit vein was much larger than the first seven spirit veins.

After the sevenfold spiritual vein realm, every time he breaks through, his strength will change drastically, especially after breaking through the ninth level of the spiritual vein realm, his strength will increase several times, if it weren't for Lin Yu entering the sword intent realm in the way of the sword, I am afraid that he would not be able to compete at all.

In the battle with Zhao Xingyu, if it weren't for Zhao Xingyu's light enemy, which led to being suppressed by him from the beginning, he would not be completely sure that he would be able to defeat the other party.

As for how much his strength can be increased after the breakthrough, Lin Yu's heart is extremely excited, after all, he is cultivating exercises such as the Star Derivation Technique, every time he breaks through a realm, his strength will increase more than others, and this breakthrough strength can be increased by two times? Or triple? Or even higher?

With the continuous influx of spiritual power, the eighth spiritual vein became more condensed from the phantom, and time passed again minute by minute.

Rumble!

I don't know how long it was, there was a roar in Lin Yu's body, his closed eyes suddenly opened, and a look of surprise appeared on his face.

Eightfold Spirit Vein Realm!

But the spiritual power of heaven and earth still did not stop entering his body, but became more violent.

"The third important breakthrough of the Derivation Star Recipe has been made." Lin Yu was happy in his heart, the breakthrough of the Derivation Star Technique, compared to the breakthrough of the cultivation realm, the improvement of his strength was more obvious, and this improvement was continuous, the higher the cultivation realm, the greater the improvement.

He sat down cross-legged again, running the Star Derivation Technique, and the Spirit Gathering Array in the cultivation room had reached the fastest speed, absorbing the spiritual power of heaven and earth within a hundred meters around the small courtyard like a whale swallowing, and the air within a radius of a hundred meters fell into a vacuum period for a short time, and it continued to spread outward.

"What is this kid doing?" In the depths of the inner courtyard, Ouyang Chenhui, who was in retreat, suddenly opened his eyes, and his gaze passed through thousands of meters away, passed through the formation on the small courtyard, and fell on Lin Yu's body.

"Realm breakthrough? If you don't break through the spiritual vein realm, how can you need so much spiritual power, is it a breakthrough in the exercises? But even a ground-level exercise wouldn't cause such a big movement. ”

"Could it be the exercises left by the ancestors?" He was suddenly shocked in his heart, Lin Yu broke the inheritance of the ancestor, and it was possible to get the inheritance left by the ancestor.

His figure flashed, appeared in the clouds above Lin Yu's small courtyard, with a wave of his big hand, endless spiritual power flowed out of his body, as if a spiritual rain had fallen in the air, after a moment passed, the spiritual power in the vacuum area recovered, Ouyang Chenhui fell from the sky with a pale face, and his eyes were full of horror.

"What kind of exercise is this, it requires such a huge amount of spiritual power consumption."

His cultivation had already reached the peak of the Cloud Sea Realm, but at that moment just now, he actually emptied thirty percent of the spiritual power in his body.

In fact, it's not that Lin Yu needs so much spiritual power, it's just a breakthrough in the Star Derivation Technique, and ninety percent of the spiritual power is used to cast stars.

Ouyang Chenhui's hands changed, and his spiritual power gathered in the air into several strange symbols.

He muttered softly in his mouth, and several symbols fell in the four directions of Lin Yu's small courtyard, east, west, north and south, the formation on the small courtyard became stronger, and the aura of breakthrough was all blocked in the formation, no one knew that this famous academy dean in Qingzhou actually had extremely high attainments in the formation path.

"What a troublesome little fellow." Ouyang Chenhui smiled helplessly.

In the cultivation room, Lin Yu's mind was completely condensed on the star that was about to be born in his body, and he didn't know anything about the situation in the outside world.

Half a month has passed in a blink of an eye, Lin Yu is still in retreat, this is the longest retreat since he has cultivated, during which Nangong Yue and Li Xin have come to see a few times, but they have been blocked outside by the formation, and now the fourth group of cultivation is completely guided by Li Xin.

"A spirit vein realm, he has been in retreat for such a long time, he really used me as a coolie, and he must beat him up when he gets out." Li Xin's heart forked in the road.

On this day, a loud voice sounded in the inner door, and the purple light rushed to the sky, and at this moment, it attracted everyone's attention.

In the huge pillar of light, a young figure stepped into the air, his handsome cheeks, under the illumination of purple light, full of charm, a faint smile on the corner of his mouth, a white dress without wind and automatic, the pressure on his body was extremely strong.

"Look, that's Senior Brother Yang Qi."

In the huge square, many girls exclaimed, with a look.

"Peng Huaiyu, come out and fight."

He used his spiritual power, and his deep voice fell to every corner of Liuyun Academy.

In the inner door, a figure rose to the sky and landed steadily on the tall building, facing Yang Qiyao.

Although the figure is mediocre, the tenacity of the edges and corners adds an intriguing temperament to him.

He looked a little older than Yang Qi, and the aura on his body was powerful, but at this moment, his eyes were full of solemnity.

"Senior Brother Yang Qi is going to challenge Senior Brother Peng as soon as he gets out."

"Normal, the two of them are the second in the inner door and the third in the inner door, Senior Brother Yang is one year younger than Senior Brother Peng, so he has always refused to accept the ranking, and his strength has increased greatly after this retreat, and he will definitely challenge Senior Brother Peng."

"Now I'm afraid that except for Senior Brother Qi, no one in the inner gate will be Senior Brother Yang's opponent."

……

In the cultivation room, Lin Yu's eyes were still closed, and he was deaf to the movement outside.

In his body, the third star is still condensing, and the first two stars have also undergone a lot of changes, not only the area is larger, but inside the stars, purple thunder and lightning surround them, sizzling.

In his body, a metamorphosis is quietly underway, slowly waiting for the day when he will break out of the cocoon and become a butterfly.