Xing Jiu'an didn't know that Lu Zhichen wanted to make a good meal to coax her.

She asked Mu Qing if he would come back for dinner, but Mu Qing said that he was a bit busy today and would not come back at noon.

Xing Jiuan said yes.

Then she went to find the big brother.

The big brother's company headquarters is also in the capital, and he is usually taken care of by a special person. If he occasionally comes to the capital, he will still go to the company to stay for a while.

Xing Jiuan asked the big brother if he would go home for dinner, and the big brother said.

Mu Qing and Ou Qilu Mingxi won't come back, but the big brother comes back, plus the family members, and you know how many people will have dinner at noon.

The big brother went home to cook for them.

He didn't want Xing Jiu'an to eat takeout, because he always felt unhealthy, and he didn't want the master or uncle who could cook to cook, so he prepared to come back by himself.

Unexpectedly, waiting for him to come back to see, the food has been prepared, waiting for him to come back to eat.

The big brother saw Lu Zhichen and nodded clearly.

He said, how could it be possible that there are so many dishes, and they are delicious, it turned out to be Lu Zhichen!

Then no fuss.

He also met Li Ting and greeted others.

Li Ting and the big brother are not much different in age, but the two are completely different types.

Senior brother is like a veteran cadre, gentle but serious, after all, there are more than 20 younger brothers and sisters behind him who want him to watch.

Li Ting has always been unruly, even in the most powerful days when he was hunted down, he still showed his personality.

Lu Zhichen went back soon after eating, and Xing Jiuan went to take a nap.

She woke up, saw the news from Su Yize, and then realized something.

She promised Qi Lei to go to his school to meet him, but it hasn't come true yet!

It just happened that there was nothing today, so she decided to do it today.

It took less than an hour to drive there, and at most four o'clock in the afternoon to get there.

Su Yize sent a message asking her about the solution to a problem, and he took a picture and sent it over.

Xing Jiu'an clicked and took a look.

It was a somewhat difficult math problem. Xing Jiuan picked up paper and pen, wrote a few lines and took pictures and sent it to him.

Su Yize was very happy to see the efficiency of the younger sister so high, and she didn't feel disgusted when she looked at the cousin next to her.

This cousin is a **** of learning in the true sense, and he particularly likes mathematics. He is now in the Department of Mathematics of A University.

He encountered a somewhat difficult problem and was thinking about it. Su Yize came to play with him and broke his draft paper, which made him a little angry.

Su Yize said at the time that I just asked my little senior sister, and my little senior sister would definitely do it. What are you so fierce?

This cousin has always been very good, but one thing is that he can't touch his books and scratch paper, these are his treasures.

Su Yize also asked this cousin if he regards these as his lover.

Of course the cousin with a high IQ didn't answer his questions.

The cousin waited for Su Yize to ask.

Su Yize knew that Xing Jiu'an was busy, and thought he would have to wait for a while, but he didn't expect the other party to send pictures directly after not long.

There was another sentence immediately afterwards.

[Little Sister: This is not what you are learning, right]

Xing Jiu'an is not very sure either. After all, she studied most of the time by herself. She also went to the middle school and university of the former Mongolian school. She also skipped grades in the middle. She really didn't know what kind of knowledge she learned in which grade.

Su Yize quickly replied that this was his cousin's problem, and because he couldn't understand it, he asked the younger sister.

Xing Jiuan said it was okay.

She turned off the phone and was about to go out.

It's a good day outside, suitable to go to school to see my brother!

Su Yize clicked on the picture, and the result was only a few lines.

"Ah, I forgot. Little Sister is used to writing less."

The cousin looked around, and the corners of his mouth twitched.

Where is the process of writing less, this almost directly gives a result.

But the main formula is listed.

The cousin looked for a while, and his eyes brightened as he looked at.

"It turned out to be like this, no wonder I never understood it."

Then the cousin recalculated again. He is different from Xing Jiu'an. He can't get the answer directly by looking at it. After forgetting most of the draft paper, looking at the final answer, his eyes are very bright.

Su Yize leaned over and took a look, and the two answers were exactly the same.

"Why didn't I expect it, it's easier to see this way."

Then he looked at Su Yize again.

Su Yize frowned, feeling as if something was happening.

He somewhat wanted to run.

"Ozawa, do me a favor."

"My little elder sister has a boyfriend, no, she's already a fiancé, don't Xiao think about it!"

"..."

"I didn't mean that." The cousin explained. "Since you can help, I still have a few problems here, can you ask your little senior sister to help answer them."

"..."

"By the way, the process shouldn't be too short, I'm afraid I won't understand it."

"..."

"You help me, I tutor you for two months of homework for free, and secretly let you play games."

"Deal!" Su Yize said immediately.

Tutoring homework is nothing, playing games or something, he is looking forward to it!

Su Yize took pictures of several topics and sent them to him, and then said about his cousin's request.

Xing Jiuan saw it as soon as he got in the car, and she replied.

[Little Senior Sister: I have something to do now, I will send it to you when I am done]

[Little Junior Brother: Uh-huh, Little Senior Sister is busy first, not in a hurry (behaved. jpg)]

Xing Jiuan put away his mobile phone and drove, and went to find his brother to play!

My cousin saw Xing Jiu'an's reply on Su Yize's phone and was not disappointed.

He has never had a clue on these topics, thinking a lot of ideas, and finally can't get the right one.

I hope that Su Yize's little sister can help him!

"Your little sister is so good, is she also a student of mathematics?" he asked curiously.

"No, my little elder sister studied archeology." Su Yize replied.

"...Archaeology?" The cousin was shocked!

"Yes, what's wrong?" Su Yize was at a loss.

"..." No, if she has good mathematics talents, why not learn mathematics?

It's a pity that my cousin doesn't understand, some people's talents are so unreasonable!

"Senior Sister is also very good at archeology!"

"No, Little Senior Sister is amazing in everything!"

"Especially outstanding in every aspect!"

Su Yize was extremely proud, as if he was boasting himself!

"Then, compared with Xing Jiu'an, your little elder sister, who is more powerful?" The cousin asked, very curious.

He didn't care much about things on the Internet before, and he just read books to do problems and plunged into the ocean of mathematics.

But I also heard from classmates and friends around me that Xing Jiu'an was super awesome.

But he only listened to a few, but what his classmates taught was amazing, and he still has some impressions up to now.

"..." Su Yize was silent.

"It's not as good as..." The cousin wanted to take his words back, so he listened to Su Yize.

"Don't you know that my younger sister is Xing Jiu'an, cousin?"