Fake daughter, she is beautiful and sassy

Chapter 80 Need Money
Xu Ziyan guessed that after Lan Yin was kicked out by her family, besides going to school, she also had to worry about making a living.

So after school, where is she going to work?

Although I said that I would give tuition fees, but Lan Yin must be driven by self-esteem, and she didn't want to accept what she gave, so she refused herself.

When she was rejected, Xu Ziyan still felt a little lost.

But now because of Sun Zhen's words, Lan Yin agreed to help her with her homework, so Xu Ziyan even felt that her attitude towards Sun Zhen was not as annoying as before?
But even if it's not too annoying, she will study hard with Lan Yin, improve her math performance, and crush that bastard Sun Zhen!

Xu Ziyan didn't know why, but she had an inexplicable sense of trust in Lan Yin.

When Lan Yin said that she could pass the monthly exam next Monday, and her math score surpassed Sun Zhen, Xu Ziyan would feel that she could really do it!
After a brief tit-for-tat confrontation among the people in the classroom, the class bell rang.

The Chinese teacher in charge of teaching this class walked into the classroom.

The Chinese teacher of Class [-] is a middle-aged man who is over [-] years old and has a very old face.

In addition to being the Chinese teacher of Class [-], he is also the head teacher of Class [-] of the third grade.

Due to years of hard work, he already had gray hair in his 40s, and his face was sagging, with wrinkles around his eyes and mouth.

During last week's class, Lan Yin has listened to a dozen or so Chinese lessons, and this Chinese teacher speaks well.

But what caught Lan Yin's attention the most was not the Chinese teacher's teaching effect, but his illness.

Although Lan Yin has not studied medical skills systematically, she only has a superficial understanding of medicine.

However, when she was developing medical equipment for a while, she had a certain understanding of the diseases under the scope of her medical equipment.

When she took her first Chinese class last Monday, she didn't find anything about the Chinese teacher.

But after a few days of observation, she was able to tell that the Chinese teacher had cancer.

Because the cancer is in the middle stage, so there is no attack for the time being, and he probably doesn't even know it.

The emergence of cancer made Lan Yin realize that with the level of medical treatment more than 100 years ago, cancer is equivalent to terminal illness!
So after the portable 'surgery machine', Lan Yin's next step is to manufacture a phototherapy machine that can cure cancer, leukemia, AIDS, hemophilia and other diseases.

Light therapy machines are not as easy to manufacture as surgical machines. Even after more than 100 years, they have not been widely used, and they are only available in hospitals of a certain level.

Therefore, if you want to copy the phototherapy machine to this era, you will inevitably need money.

And a lot of money!
Some of the metals needed to make the inside of a phototherapy machine are not ordinary metals.

The price of some metals is even more than a hundred times that of gold per gram!
It was also for this reason that Lan Yin made the 'surgery machine' at the very beginning instead of directly manufacturing the phototherapy machine.

In the classroom, the Chinese class has already started.

And in the back row of the classroom, Lan Yin, who was considering the cost of the phototherapy machine, the phone in the desk drawer vibrated——

She took out her mobile phone, looked down, and an account credit message appeared in front of her eyes.

'One, ten, one hundred, one thousand, ten thousand...'

Lan Yin silently counted the several zeros that followed her income, then raised the corners of her mouth in a good mood, and laughed silently~
At this moment, she knew that the news that the large sum of money had entered the account was the surgery machine that she had mailed out, and she had successfully sold it——

(End of this chapter)