Chapter 679

Yu Yan clenched her lips, clenched her fist and said nothing!

Her heart was constantly calculating, and she always felt that she couldn't get over this barrier.

Li Xiaofan also guessed what the other party thought and said, "don't have too much burden in your heart. The servant I said is different from the ancient maid."

"What's that?" Yu Yan was still puzzled.

"To be exact, I'm in charge of your cultivation. You have to get my approval to do anything in this regard," Li Xiaofan said.

Yu Yan didn't care about this at all, but continued to ask, "what about the usual things?"

"I don't care about the trifles in life. You can do whatever you want. I won't disturb you." Li Xiaofan promised.

"No other requirements?" Yu Yan couldn't believe it.

"Of course." Li Xiaofan said when he saw the other party's nervous look. "In fact, it's not a big problem. That's to ensure that you don't hurt innocent people."

Perhaps she heard that there was a solution, or she saw Li Xiaofan's means. Yu Yan relaxed a lot and was amused by this guy's words.

"Are you kidding? I'm a good man. How can I hurt others?" Yu Yan said.

"Maybe not before, not now, but it's hard to say after you practice witchcraft with me." Li Xiaofan said.

Power is a good thing. If ordinary people get inexplicable power, they may do some unimaginable things.

For example, take revenge on the people who were bad to him before;

Or, pursue something and destroy it recklessly.

Li Xiaofan has seen too much, which can be regarded as prevention.

Yu Yan saw that Li Xiaofan was so serious and became serious. She thought for dozens of seconds, then nodded and agreed.

"OK, I'll teach you some simple, which can at least control the poisonous insects in your body." Li Xiaofan said.

Yu Yan nodded excitedly.

It has to be said that the people selected to become the descendants of witches and insects still have some talents. Under the guidance of Li Xiaofan, Yu Yan soon controlled a lot of witches and insects knowledge, and her performance is commendable in the process of practice.

Even before Li Xiaofan fully understood some things, Yu Yan had mastered them skillfully.

Li Xiaofan taught Yu Yan witchcraft knowledge. Who knows, in turn, he learned a lot from each other.

"It's almost today. You can control the poisonous insects in your body. At least they won't jump out at will. As for the subsequent cultivation, take your time and don't worry." Li Xiaofan said.

"Thank you, Xiao Fan, I will remember what I said." Yu Yan practiced for a while, her face was much better, and the whole person became more confident.

"You're welcome. I'll go first." Li Xiaofan walked out quickly.

He wants to teach Yu Yan. The key is that all the knowledge he knows has been told, and there is no goods in his stomach.

If Yu Yan knew that he was learning and selling now, and even learned from her, I don't know how he would feel.

Li Xiaofan just passed by from Jingcheng University. The phone rang. He took out his mobile phone and found that the incoming call was actually a strange number.

"Hello," said Li Xiaofan.

"Hello, is that Li Xiaofan? I'm old man Fang." a familiar voice came from the other end of the phone.

Li Xiaofan also roughly judged from each other's voice, and asked, "it's Professor Fang. I don't know what I can do for you?"

"I don't know if you have time. I've just set up a set of device and is doing particle collision test. Can you come and have a look? Give me some advice," Professor Fang said.

To be fair, Li Xiaofan is reluctant. He has precious time and is going to Cangshan.

However, he has promised to help them at any time.

"If you are short of time, forget it." Professor Fang is not ignorant.

"No, I just feel a little surprised. Wait a moment and I'll go right away." Li Xiaofan said.

"OK, great." Professor Fang didn't hope at all. Who knows that the other party actually agreed. How can he not be excited.

Li Xiaofan soon came to the physics department. Professor Fang had already waited in front of the door. It was polite to see the other party coming.

Li Xiaofan answered a few words, and then followed Professor Fang to the laboratory. Because of the latter's praise, the whole laboratory has a fair attitude towards Li Xiaofan.

"Let's start." Li Xiaofan doesn't want to waste time. He is confused when he looks at these machines.

"Start." Professor Fang was still excited and talked about it.

Li Xiaofan didn't care at first, but when he saw the moment of particle collision, the whole person was attracted.

This... The light inside collides. Why is it a little like the willow leaf sword spectrum?

Li Xiaofan became excited, his pupils were shining, quickly released his divine consciousness, and printed all the images produced by the collision in his mind.

Soon, the particle collision experiment was over.

Li Xiaofan closed his eyes and compared it with the willow leaf sword spectrum. There is a natural difference. The particle collision is not so perfect, and the willow leaf sword spectrum is not perfect. The two learn from each other's strengths to make up for their weaknesses, and can actually integrate a more perfect move.

Upgraded willow leaf sword manual!

Li Xiaofan became excited. It's great to finally find a breakthrough and control the essence of the willow leaf sword spectrum.

"I don't know about our collision just now. What do you think?" Professor Fang saw that Li Xiaofan didn't speak, so he could only ask.

The rest of the experimenters also cast questioning eyes. Despite the hype Professor Fang said before, they didn't see it with their own eyes and certainly wouldn't believe it.

"The general idea is right, but some parameters may not be accurate. Look..." Li Xiaofan began to draw with paper and pen.

Of course, he won't use the so-called formula derivation, but according to the upgraded willow leaf sword spectrum, he draws the image generated by particle collision in a more intuitive form.

Hiss!

All the people present were top talents in this field. They soon saw the clue from Li Xiaofan's description.

"Yes, yes, that's the effect. Quickly deduce the formula and adjust the parameters."

"It must be more perfect to re experiment with this."

Professor Fang and others became excited again. This is the image effect they are trying to pursue. Where would they miss such an opportunity? They all started to deduce and experiment.

Li Xiaofan left quietly. He can't help here. On the contrary, he may reveal his secret.

"I thought there was no harvest, but I didn't expect to let me understand the willow leaf sword manual. It seems that the previous decision is still wise." Li Xiaofan said with a smile.