Du Yu took out the "Remnant Yang Heart Method" that had been written from the space ring, but he was not writing it directly, but writing it backwards.

What is written upside down is the magical power obtained from the Remnant Sun Tower - "Blood Remnant Sun".

"System, how many replication points are needed to replicate the supernatural powers above. ”

Du Yu asked directly in his heart.

"Host, since you are copying supernatural powers for the first time, you can get a discount of 0.01 and 50 copy points. ”

"0.01 off, 50 copy points ......"

Du Yu was stunned on the spot, if the system doesn't give him a discount, it's not 5000 copy points!!

"System, are you wrong about the discount......

Du Yu was almost screaming!

Although he knew that there would definitely be a lot of replication points needed to copy the supernatural powers, there were too many!!

Next time, even if you get supernatural powers again, does it mean that you can only look at the addiction?

"The host doesn't need to be surprised, the chance of obtaining a supernatural power is extremely small, and the host is already lucky to be able to get a supernatural power. In the future, if there is a chance to obtain other supernatural powers, the replication points may not be enough, for example, the host will have 10,000 replication points for the complete main quest?"

Although what the system said made sense, Du Yu still couldn't help smacking his tongue, 5000 copy points was an astronomical number for him now.

It's like the feeling of the average office worker on the planet in the face of expensive housing prices!

How can the supernatural power be so good, there is no need to worry about the sky, there must be a road before the car reaches the mountain.

Fortunately, this time he only needs 50 copy points, otherwise he won't be able to make up 5,000 copy points even if he smashes the pot and sells iron.

"Copy the supernatural power "Blood Remnant Sun"!"

"Ding! Copy the supernatural power "Blood Remnant Sun" successfully, consume 50 copy points. ”

As the sound of the system's dingdong echoed in his mind, the content of "Remnant Sun Net" automatically appeared in Du Yu's mind, turned into a streamer and melted into his mind, becoming his supernatural power.

After carefully feeling the supernatural powers of "Remnant Yang Net", Du Yu immediately understood it.

The basic principle of "Blood Remnant Sun" is to burn the mana in the dantian through a special operation method, and obtain ten times the attack power.

To use a simple analogy, the original mana is compared to a wooden knife, which is turned into a steel knife through the supernatural power "Blood Remnant Sun", and the attack is naturally multiplied.

But there is also a certain flaw, that is, the mana is burned, which accelerates the consumption of mana.

For example, normal attack mana can be used for an hour, and the use of the supernatural power "Blood Remnant Sun" can last for a maximum of half an hour.

For this flaw, the information of the supernatural power "Blood Remnant Sun" also has a solution.

That is, when I usually cultivate, I run the supernatural power "Blood Remnant Sun" several times, because the higher the quality of the mana after burning, the less consumption will be when the supernatural power is used again.

To put it simply, the supernatural power "Blood Remnant Sun" also has the effect of purifying mana, whether it is the mana transformed by absorbing the aura of heaven and earth, or absorbing the spirit stone, the mana transformed from the pill is not 100% pure, and there are certain impurities.

Especially for cultivators who often absorb spirit stones and pills to cultivate, the mana contains more impurities.

If there are more impurities, the attack power will be weaker.

If you don't find a way to improve the purity of your mana, in the long run, your attack power will be lower than that of a monk of the same realm.

The higher the monk's realm, the more important the purity of mana.

Therefore, whether it is the Jie Dan Realm, the Condensing Realm, or the Yuan Infant Realm, the monks are all looking for exercises to purify their mana.

However, there are very few monks who can find exercises, so the best way is to use less spirit stones and pills to improve their cultivation at the beginning, and instead directly refine the spiritual energy of heaven and earth.

In some families, especially big families and the like, they don't advocate the use of spirit stones, pills to improve cultivation, especially the best in the family, that's the reason.

Du Yu had learned this knowledge in class, so he was overjoyed when he saw that the supernatural power "Blood Remnant Sun" also had the effect of purifying mana.

Because it was very necessary for him, with his current spiritual root level, it was too difficult to cultivate by relying on the spiritual energy of heaven and earth, so he couldn't let him spend a few years cultivating.

Therefore, he knew the disadvantages of using spirit stones and pills, but he still chose to use them, because he needed to improve his cultivation quickly.

Three years of Dan realm, ten years of Yuan infant realm, without special means, it is impossible to achieve!

......

Time passes day by day.

Someone would bring food to Du Yu every day, but it would not disturb his cultivation and put it directly at the door.

In addition to eating and solving personal hygiene problems every day, Du Yu spends all his time on cultivation.

Half a month.

One month.

Two months.

"Bang~~"

A low humming sound in the dantian vibrate, and the mana came out of the body, and the dantian doubled.

"Haha!!I succeeded!!I succeeded in building the foundation!!"

There was a loud shout of excitement from the T-shaped cultivation room!

Listen to the voice is He Fanxuan!!

Although there are Du Yu, Su Xiaoqi, and Fang Jing, who has repaired the dantian.

Fang Zhiliang also focused on cultivating He Fanxuan, and on the second day of Du Yu's retreat, He Fanxuan also entered the T-shaped cultivation room.

However, He Fanxuan also knew that Du Yu was in the best number A, so he usually staggered Du Yu when he ate and solved personal hygiene problems.

Like Du Yu, he spends all his time cultivating.

He was originally at the eighth layer of the Qi Cultivation Realm, and he was rewarded with a thousand lower grade spirit stones, plus the rich spiritual energy in the cultivation room.

In two months, he finally broke through the tenth layer of the Qi Cultivation Realm, and relied on his own efforts to advance to the Foundation Building Realm!!

The success of building the foundation has not only greatly improved its strength, but also the key is no longer subject to Du Yu!!

After the excitement, He Fanxuan's eyes looked at the first word, and his eyes were instantly cold!

"No matter how many rewards you get, no matter how demonic you behave, so what? Inferior spirit root is destined to not be able to make big waves for the rest of your life!"

"The Qi Cultivation Realm has made you arrogant, and now I have successfully built the foundation!Du Yu, you wait!I will slowly torture you, so that everyone can see that you are a waste!The glory that belongs to me He Fanxuan, no one can snatch it away!!"

"I'll go out now to accept the worship of all the teachers and students, and take back the aura that belongs to me! When you come out, I'll clean you up!!"

"And Fang Jing is mine! You'll be desperate!"

"Haha!!"

He Fanxuan laughed loudly, pushed open the stone door of the cultivation room, patted the dust on his clothes, tilted his head, and proudly left the cultivation hall.

He Fanxuan made such a big move here, it was difficult for Du Yu to know it.

Naturally, he also knew that He Fanxuan had successfully built the foundation and advanced to the foundation building realm.

But so what?

In the first-word room, Du Yu slowly opened his eyes, and countless lights were circulating in his pupils.

After two months of retreat, all the spirit stones were exhausted, and he finally raised his cultivation to the tenth layer of the Qi Cultivation Realm.

Originally, there were spirit stones left, but under the purification of the supernatural power "Blood Remnant Sun", the mana required for promotion increased, so all the spirit stones were consumed.

Now is the time to lay the foundation.

Tsukidan was taken out of the space ring by Du Yu, and slowly opened the jade box, and the pale green Tsukidan the size of his thumb came into his eyes.

Bursts of refreshing medicinal fragrance wafted out from Tsukidan, which smelled very good, and the spirit was lifted.

For Du Yu, whether it is an elixir or a spirit stone, with the magical power of "Blood Remnant Sun", there is no need to worry about too many impurities in the mana.

Taking a deep breath, Du Yu swallowed Zhuji Dan in one gulp and ran the "Remnant Yang Heart Method......