30 minutes passed again, and Xu Xian stopped writing a little dejectedly.

She didn't finish the questions on the test paper that Ye Yu gave her, and she felt that some of them should have been done wrong.

Although the "senior" Xu Xian was a little frustrated, he was polite and respectfully handed over the test paper to Ye Yu.

"Hmm" Ye Yu took the test paper, and then said to Yun'er: "Yun'er, after you finish these two questions, summarize the ideas for solving the questions, and I will ask questions in a while."

"Inside"

Then, Ye Yu began to correct Xu Xian's test papers, and sure enough, after Ye Yu corrected them, Xu Xian made more than half of the questions wrong.

"42 points" After Ye Yu finished correcting it, he said Xu Xian's score lightly.

"I'm sorry, senior" Xu Xian looked ashamed, lowered his head and didn't dare to raise it.

"It's okay, Xiaoxian" Yun'a, who had already solved the problem, hurriedly hugged Xu Xian to comfort her.

Ye Yu sighed, and also opened his mouth to comfort: "Don't be discouraged, these topics are already difficult, and it's already very good that you can do this." ”

"Now, let's solve these two problems with Yun'er first, Xu Zhuxian, although you have a good foundation, the way to solve the problem is still too simple, although I told you some essentials of solving the problem, but when you really solve the problem, you are still used to the hard formula, so you listen carefully with Yun'er" I have to say that Ye Yu is quite suitable for being a tutor.

The two girls answered with a voice, and then concentrated on listening to the class.

It didn't take long for the two girls to nod their heads and suddenly, and the two questions that were not difficult for Ye Yu at all were solved.

"Listen carefully, I'll give you an analysis of how to solve the problem, Yun'er especially you, your foundation is not as solid as Xu Zhuxian's sister, if you want to get a high score, you must know more

Simplify the problem! Ye Yu's fingers tapped lightly on the table, ready to explain the test paper he had just written for Xu Zhuxian.

"Inside!" Xu Xian raised his head and glanced at Ye Yu, his eyes were full of determination and seriousness, and the notebook and pen were ready.

"Inside" Lin Yun'er also sat upright and cheered up, because she knew that Ye Yu was right, her foundation was really not very good, and with more and busier practice life in the future, her learning foundation would only get worse and worse, so what Ye Yu said was what she really needed and had to master.

Of course, this is also Ye Yu's targeted teaching method, because Lin Yun'er is smart, lively, and imaginative, strictly speaking, many high-quality learning methods are more suitable than Xu Zhuxian, who is strictly forbidden and prudent, and can be absorbed and used better.

Ye Yu turned a new chapter and wrote a few words on it, and said: "Now I will teach you two new problem-solving skills: matching method and pending coefficient method, such as this problem, see my problem-solving process in detail"

Because of Xu Xian's storage, the original two-hour tutoring time was unconsciously extended.

In the blink of an eye, it was 10 o'clock in the evening. Dad Lin, who had finished his work, walked out of the room and saw the three of them enthusiastically engaged in learning, and a relieved smile appeared on the corner of his mouth.

However, Father Lin also knew that it was late, so he walked over and interrupted Ye Yu's teaching: "Xiao Ye, it's 10 o'clock, or I'll be here today, it's too late to go back." ”

After listening to Father Lin's words, Ye Yu also looked at his watch, and sure enough, it was already late, and he nodded to Father Lin: "Okay uncle." ”

After Ye Yu sped up and explained the topic that he hadn't finished just now, he closed his notebook and said to the two girls: "Okay, that's all for today, remember to sort out your notes when you go back, the topics and methods you talked about today, I will come up with the same type of topic for you to do next week."

Speaking of this, Ye Yu paused, he looked at Xu Xian, and he suddenly remembered that he was just Yun'er's tutor.

"Inside! Senior, I'll be here on time next week" Xu Xian reacted quickly, and then she looked at Yun'a expectantly and asked, "Is it okay?" Ernie. ”

"Of course!" Yuna smiled and nodded.

"So be it!" Ye Yu nodded and began to pack his things.

"Ernie, it's time for me to go back too!" Xu Xian whispered to Yun'a.

Yun'er blinked: "It's late today, or stay and sleep."

"Thank you, Ernie, but I have to go back." Xu Xian shook his head.

"Well, I'm not worried about you alone!" Yuna looked at Xu Xian with a little worry.

Father Lin, who was listening on the side, was also stunned when he heard this, he also considered this problem, and then he looked at Ye Yu, who was silently packing up his things, and smiled: "Xiao Ye"

"Inside, uncle" Ye Yu stopped and looked up at Father Lin.

"If you stop by, send Xiaoxian back, it's not safe for her to be a girl so late." Dad Lin said with a smile.

Ye Yu was stunned when he heard this, and looked at Xu Xian.

"No need, it's okay, I'll just go back by myself" Xu Xian hurriedly shook his head and waved his hand.

"Okay, uncle" Ye Yu ignored Xu Xian's words and nodded to Father Lin in agreement.

"Senior, really don't use" Xu Xian was still refusing.

"That's it, I can rest assured that you will send Xiaoxian, hehehe" Father Lin smiled with satisfaction.

"This is your tutoring fee today" Father Lin sent Ye Yu and Xu Xian out of the house while taking out the money to Ye Yu.

"Thank you, uncle" Ye Yu also accepted it without pretentiousness, because this was what he deserved.

"Hehehe, I'm going to thank you, okay, I won't nag, it's really late, you can go back quickly" Father Lin smiled.

"Inside, then let's go, good night uncle" Ye Yu said goodbye politely.

"Okay, be careful on the road"

"Inside!"

Xu Xian found that the two people in front of him ignored her opinion at all, and could only muttered weakly: "I really don't need to"

"Let's go!" Ye Yu glanced at Xu Xian and said in a tone that could not be refused.

Xu Xian was stunned for a moment, and bowed helplessly to Ye Yuyi: "Inside, I'm troublesome to my seniors." ”

"Yun'er Oni, uncle, I'm leaving! I'm interrupted today" Xu Xian is still so polite.

"Fool, what are you doing so politely, see you tomorrow" Yun'er smiled and waved goodbye.

So, under the farewell of Father Lin, Ye Yu led Xu Xian out of Yun'er's house.

Both are quiet types, so on the way to the bus stop, both were speechless.

Ye Yu looked ahead expressionlessly, Xu Xian carried his schoolbag in both hands, lowered his head and followed behind Ye Yu silently.

When they arrived at the bus station, they stood side by side.

It was late at night, there were few pedestrians on the streets, and there were quite a lot of vehicles.

In fact, Ye Yu is more or less reluctant to be this good person, but considering that South Korea is actually not very good in public security, even if this is Seoul, which is the place with the best public security, it is still a little unsafe for Xu Xian to go back by herself. Of course, if there are two people, the average little thief doesn't have that guts. After all, it's only 10 o'clock, not the silent wee hours of the morning.

That's why Dad Lin mentioned Ye Yu to send her back, and if Ye Yu refused, Dad Lin would also drive Xu Xian back.

"Senior, I'm sorry for the trouble." Seo Hyun was the first to break the silence.

"It's okay, it's just a way" Ye Yu nodded slightly and said lightly, but in fact, it was not on the way.

Ye Yu's coldness made Xu Xian unable to answer, so he had to stand obediently.

Then the two fell silent again.

After a while, the car came.

"Let's get in the car" Ye Yu turned his head and glanced at Xu Xian, who was still with his head down.

"Inside!" Xu Xian hurriedly answered, and then followed Ye Yu to the car.

It was late at night, and there were not many people on the bus, and there were seats.

"Sit here!" Ye Yu saw Xu Xian walking towards a single-seat position, so he spoke.

"Inside" Xu Xian paused, and then obediently turned to Ye Yu's location.

After Xu Xian sat down by the window, Ye Yu sat down beside her.

The car started, but after the two sat down, they were still silent.

"Senior, I'm sorry for you" After a long time, Xu Xian apologized again and thanked him.

Ye Yu replied helplessly: "It's just a way." ”

Then the two stopped talking again, and Ye Yu simply took out a book and read it.

And when Xu Xian saw Ye Yu reading, she also took out her notebook from her bag and began to read the notes.

Sometimes friends don't understand something, and they will ask Ye Yu in a low voice.

Simple questions, Ye Yu opened his mouth to answer without raising his head, and if he needed to start writing, Ye Yu would put down the book and pick up the pen to answer Xu Xian.

The passengers in the car looked at the two strangely and thought: These two children are so hardworking! If only my rabbit cub were so diligent

Before he knew it, the car arrived at the station where Xu Xian was going to get off.

"Senior, I've arrived," Xu Xian whispered to Ye Yu, who was still reading.

"Oh, let's get out of the car" Ye Yu put away the book and stood up.

"No, it's not a senior, I'll go back by myself! It's already very close to home," Xu Xian didn't want to trouble Ye Yu anymore.

Ye Yu ignored her and took the lead in getting out of the car.

Xu Xian had no choice but to hurriedly get out of the car.

After Ye Yu got out of the car, he stood not far away, waiting for Xu Xian to lead the way, and Xu Xian also hurriedly walked to Ye Yu to sign his autograph, and then the two walked quietly on the road to Xu Xian's house.

"Senior, I'm bothering you," Xu Xian probably didn't have a second sentence to say.

Sure enough, Ye Yu rolled his eyes speechlessly: "Do you only say this?!" ”

"I'm sorry!" Xu Xian hurriedly apologized.

The corners of Ye Yu's eyes twitched: "I've served you"

"I'm sorry!"

“”

Soon, Xu Xian's home arrived.

"Senior, I'm here, thank you, it's really too troublesome for you today" Xu Xian, who was at the door of the house, bowed deeply to Ye Yuyi.

The corners of Ye Yu's mouth twitched, and he sighed helplessly: "Okay, don't apologize anymore!" Now that you've arrived, I'm leaving."

"Inside! Thank you, senior," Seo Hyun bowed again.

Ye Yu felt that he couldn't stand it anymore, and he was really not covered by the uprightness! He nodded, turned around and hurriedly quickened his pace to leave.

Xu Xian stood at the door, and it wasn't until Ye Yu disappeared from sight that she smiled sweetly, took out the key, and turned around to open the door.

Ye Yu, who was walking quickly towards the station, gradually slowed down.

"Heh" Ye Yu, who didn't know what he was thinking, couldn't help but glance back, and a smile hung on the corner of his mouth.

This smile, with a hint of helplessness, but also with a hint of inexplicable relief and pleasure.