Twenty thousand yuan.

Ten thousand of the money is the cost of learning the Five Qi Body Tempering Method; the other ten thousand is the cost of learning to prepare pure body fluids.

Lu Chen is a very conservative person, but never stingy.

He will not spend a penny of money that should not be spent; he will not be stingy no matter how much money that should be spent.

"Have you really learned it?" Tang Qiuyi still found it unbelievable.

Lu Chen smiled: "It's all taught by my sister."

Tang Qiuyi pouted and asked, "Can you control your qi and blood and divide it into five parts?"

Lu Chen: "According to the method my sister taught me, it was successful."

Tang Qiuyi: "Then you have been practicing the Five Qi Body Tempering Method?"

Lu Chen nodded.

"monster!"

Tang Qiuyi took a breath and suddenly didn't know what to say.

It’s so evil in the quasi-warrior stage. When he becomes a warrior, what else can he do?

What's even more rare is that this guy is pretty good-minded.

Not only do I know how to protect my family, but I also know how to pay an extra 10,000 yuan in coaching fees...

Alas, I heard that this kid made a fortune in selling antiques. He taught him the "Five Qi Body Tempering Method" just to make more money. As a result, he was so honest that I felt very embarrassed.

"Go back!"

Tang Qiuyi jumped off the ping-pong table and walked into the building on her own.

...

...

When Lu Chen returned home, he slipped into the kitchen.

Although it was already very late, he still wanted to prepare a portion of pure body fluids to practice his hands.

After all, it is a new technique, and it is the best way to strike while the iron is hot.

It took more than an hour to prepare pure body fluids, and he poured the medicine fluid into a thermos cup for easy use.

When he was cleaning up the residue of the medicinal materials, he felt a little heartbroken.

Such expensive medicinal materials are so wasteful that they can be boiled casually and discarded.

If you continue to cook, you should be able to make some medicine?

However, the medicinal liquid made from these residues is impure in medicinal properties, and I don’t know if it will be harmful after taking it.

Wait, the medicinal properties are impure!

"The medicinal properties are not pure, I can purify them!"

Lu Chen suddenly remembered the purification function of the system and tried it immediately.

He boiled the residue repeatedly until all the medicinal properties inside were boiled into the medicine soup. He stretched out his finger and chanted silently [Purification].

[Consumption of source energy is 0.1, and can be purified!]

【Is it purified?】

Lu Chen chose to purify.

A strange energy flowed out from his fingers and instantly merged into the medicine soup. After a few seconds, the color of the medicine soup began to change, and the ingredients inside were quickly combined.

After blinking, a pill floated in the medicine soup.

"The pill was actually purified!"

Lu Chen was both surprised and happy, so he quickly took out the pills.

Then, another elixir condensed in the medicine soup.

However, the medicine liquid in the medicine soup seemed to be insufficient, and the pill eventually failed to condense and dissipated.

Lu Chen poured out the medicine soup and the residue, took out a portion of the medicinal materials, threw them into the pot, and then simmered them.

After the water boils, Lu Chen consumes the source energy again and purifies it.

As the boiling was boiled, a pill gradually formed and finally condensed into the size of a pigeon egg and floated on the surface of the medicine soup. As the boiling continued, another pill condensed soon afterwards.

After a while, the third pill was successfully condensed.

At this time, the medicinal properties have been almost consumed and no pills can be condensed.

"A portion of medicinal material consumes 0.1 source energy and can purify three pills... I wonder how effective this pill is?"

Lu Chen became more and more excited and didn't even have time to rest. He ran downstairs and started practicing the "Five Qi Body Tempering Method".

When the body's energy is almost consumed, Lu Chen takes pills.

He just wanted to know the effect of the pill.

After the experiment, he found that the effect of the elixir was quite amazing.

A pill has better effect than the prepared pure body fluids.

A portion of pure body fluid can help Lu Chen replenish seven consumptions; while a body quenching pill can replenish nine consumptions.

One portion of medicinal materials can purify three body quenching pills.

The most important thing is that this method is very easy to use, saves tedious extraction and configuration, and is convenient for manufacturing.

...

...

In the early morning, Lu Chen met Huang Xinlan at the school gate.

When Huang Xinlan saw him, he jogged all the way: "Hey, you didn't sleep well last night?"

Lu Chen spent the whole night making medicinal materials and only slept for less than two hours in total, so his face looked a little tired.

"fine."

Lu Chen didn't care.

Perhaps because of the development of the brain core, he is very energetic now. Although he looks a little tired, it does not affect his study and practice at all.

Huang Xinlan said softly: "Yesterday, Guo Zhengfan asked me privately where I got the unlocking pill. He wanted me to help. I didn't tell him that you helped me."

Lu Chen nodded.

This girl is much more reliable than Chen Qiwen.

She knows what to say and what not to say.

Huang Xinlan continued: "Guo Zhengfan is of C-level bloodline and needs a considerable amount of elixir. He wants to unlock the gene lock as soon as possible. I think he is very anxious and is willing to increase the price by 1,000 yuan to buy it."

Lu Chen has eight unlocking pills left in his hand.

These pills cannot be used in the short term, but they can be sold.

But he is not going to sell it to his classmates

Because the more you sell, the more trouble it becomes.

Chen Qiwen, Huang Xinlan, and Guo Zhengfan are involved more and more people, and problems will arise sooner or later.

Lu Chen looked at Huang Xinlan and said solemnly: "I don't have elixirs and have never sold elixirs. If you want to do business, you can find a way yourself."

Huang Xinlan understood what Lu Chen meant, and he didn't want to touch this business again.

...

...

Saturday, March 14.

Apart from monthly leave, there are basically no double breaks in senior high school, but you can still have a weekend break.

It's the weekend holiday again.

At around half past five, Lu Chen returned home, and his mother Li Yulan was preparing to cook.

Lu Chen said, "Mom, I'll take Xiaofang out for food."

When the little girl doing homework in the room heard this, she immediately put down her pen and shouted excitedly: "Brother, do you want to take me to KFC?"

This girl said she didn't believe it, but she always remembered it in her heart.

"Those things are unhealthy, don't spend money randomly." Li Yulan was a little unhappy.

Lu Chen: "Raising children in poverty and raising daughters in wealth. Girls live a little better and have knowledge, and are not easy to be deceived. In the past, the family had no conditions, so it was empty talk to say that they were rich; now, if they had conditions, it was not a bad thing to let Xiaofang have more contact. Moreover, I promised her that I would take her to KFC, but I couldn't break my promise."

"You always make sense. Come back early and don't hang out." Li Yulan agreed reluctantly.

"Oh!" Lu Xiaofang jumped and was so excited that she took New Year's money.
To be continued...