At this time, Lin Yan didn't know what was happening outside. Otherwise, he would have lamented that Yu Xiaogang's brain-enhancing ability is really strong.

It took him ten minutes to breathe a sigh of relief. "Look at how the effect is?"

As he said that, he took out a small mirror and shook it in front of Liu Erlong.

At first, Liu Erlong didn't dare to look at it. After all, his ghost appearance could be seen from Yu Xiaogang's disgusting expression.

Even if you can return to Tiandou City and find Ye Xuan, you can't protect your appearance.

But, after thinking about it, it wasn't right.

How much Mr. Lin exists, there is no need to play tricks on himself.

So, she opened her eyes boldly.

"Is this really me?"

Liu Erlong was stunned. The mirror still showed his delicate and beautiful face. There was no change at all.

Her hands fell on her cheeks and gently stroked the injured skin, which was smooth and tender.

It was actually cured... Liu Erlong whispered in a low voice.

I just feel that at this moment, my heart is filled with sunshine again.

"thank you."

Thanking sincerely, Liu Erlong bounced up directly from the stool and gave Lin Yan a big hug excitedly.

The whole person seemed to be hanging on Lin Yan.

But the next moment, Liu Erlong realized that he was impulsive again and hurriedly avoided.

What a guy, he is really fierce... Lin Yan smiled dismissively.

"It will take three days to fully achieve this medicine. Behind you is the bathroom. Take a shower and change into clean clothes. By the way, you can't get water on your face within three days."

After explaining, Lin Yan turned around and left.

Liu Erlong didn't even react, is that all is over?

Indeed, it was just like that. Although Lin Yan liked beauties, he was not yet hungry and took advantage of the situation.

Although it is a forced melon to quench thirst, the bottom line of being a human being cannot be lost.

Soon, Liu Erlong finished washing and walked out with a little hesitation.

Wearing a simple blue cloth dress, Bupa pulled up a strand of blue on his head.

On the white face, the facial features looked delicate and moving, with picturesque eyebrows and eyes. A pair of big black eyes shining brightly.

It's indeed a beauty, no wonder Yu Xiaogang kept hanging... Lin Yan's eyes lit up. But he still waved.

"Okay. It's time to go back."

Liu Erlong nodded and said nothing.

Outside the door.

Yu Xiaogang had woken up at some point, but his eyes were a little dull. At this time, he saw Liu Erlong's figure.

"It's clean, my clothes have been changed. My face is filled with a happy smile."

But the more Liu Erlong was like this, the more Yu Xiaogang felt so nervous.

He felt like he had a grassland.

"Can you help me now?"

He set his eyes on Lin Yan at the door.

"Why should I help you?"

Lin Yan was a little puzzled. What is the difference between this and just now? He doesn’t understand?

"You actually went back on your word?"

Yu Xiaogang was confused. Didn’t he agree to have an exchange?

"What did I promise you? I have cured Liu Erlong and she still has to thank me."

Lin Yan smiled.

Sure enough, this statement came out. Liu Erlong smiled and said, "Thank you."

Yu Xiaogang was a little confused. Is this playing me?

"Xiaogang, you misunderstood. It wasn't what you thought. Nothing happened between Mr. Lin and me." Liu Erlong understood and defended himself.

"Haha, do you think I'm stupid?" Yu Xiaogang smiled angrily. "I can hear your previous dialogue clearly."

Dialogue? What dialogue?

Liu Erlong suddenly realized and looked at Lin Yan shyly. "That's Mr. Lin applying medicine to me. Otherwise, how could I recover as before?"

Apply medicine? I believe your ghost?

Why don't you say you're eating spicy strips?

Of course Yu Xiaogang didn't believe it, he felt that he had seen through everything.

"Haha, I understand. Lin Yan, aren't you just afraid of helping me? I will surpass you one day?"

No, you have surpassed me in terms of your face... But in other aspects, aren't I just beat you up?

Lin Yan smiled, did you make a provocation? Then you succeeded.

"Okay, I'll give you a chance."

For such people who are slapped in the face.

"Everyone says you are very knowledgeable. I will give you a math problem. As long as you can answer it, I will solve your martial soul problem."

As he said that, Lin Yan took out a fairy grass. Suddenly, a fragrance filled the air.

Sure enough, he could really solve my problem... Yu Xiaogang smelled the fragrance in the air, and just breathed such air, and he felt a sense of comfort throughout his body.

Then, a look of fanaticism appeared in his eyes.

“What is mathematics?”

"Mathematics, in my hometown, is something that everyone touches a little. This question is not difficult for me, and even teenagers can answer it."

Lin Yan didn't explain much.

Because it's not clear.

After all, this world is all about metaphysics, so it would be strange if you can understand science when you talk to him.

"Okay, please give me some advice."

Yu Xiaogang nodded.

He didn't know what mathematics was, but he had enough confidence.

I have read a lot of books in the Martial Spirit Hall, and theories are invincible, not just talk. How can I be difficult for teenagers to deal with problems with teenagers?

"Okay." Lin Yan smiled, I like your confident look.

Then, he picked up a branch, came to Yu Xiaogang, and looked down at Yu Xiaogang with a high height.

Three lines were drawn with branches, connected together, forming a triangle, and the three corners of 1, 2, and 3 were marked with numbers.

Afterwards, he said slowly.

"It is known that angle 1 is 45° and angle 2 is 30°. Find the angle 3 degrees."

This question is not difficult, it is indeed something that middle school students in their previous life could do.

But the facts are just like Lin Yan’s guess. This is undoubtedly difficult to understand for a world of metaphysics. Yu Xiaogang felt like he was listening to a book of heaven.

What is an inner corner?

Why is it called angle A?

.....

In front of the courtyard, Qian Daoliu and Liu Erlong were also in confusion!

What's this?

They have never seen it before!

Even the meaning in the question is completely incomprehensible.

"This... this is probably a supreme law mystery!"

Qian Daoliu stared at the triangle solemnly.

One birth, two birth, two birth, three birth, and three births all things. Three simple lines clearly contain unimaginable laws of heaven and earth. Who can solve it?

"It's worthy of being Mr. Lin. We have never seen such a question before... Even Yu Xiaogang, who has read all the books in the Martial Soul Hall, cannot answer it."

Liu Erlong admired Lin Yan even more.
To be continued...