The person who came was Ma Yifan, who found out about Zhu Manru's residence through Liu Shiyu, and because they were all in the school, he rushed over immediately.

Zhu Manru opened the door with a haggard expression, although she couldn't jump just now, she felt that she had actually died once, and she didn't have any expression when she saw Ma Yifan.

Ma Yifan didn't treat himself as an outsider, and went directly into the room.

The room is not big, one bedroom, one living room, one kitchen and one bathroom, about 50 square meters, the room is on the air conditioner, and there is a fragrance.

Ma Yifan stood in front of the sofa in the living room, saw that the window was open, and there were shoe prints on the marble windowsill, and then looked at Zhu Manru's slightly reddened eyes, and he chuckled in his heart.

If I really want to provoke Zhu Manru to jump off the building because of the abuse on the Internet, I will be guilty.

Ma Yifan thought like this in his heart, he felt that the cause of the incident had a great deal to do with Zhao Bin inadvertently making Wen Wan's video popular. APP is a product of his company, Zhao Bin is his subordinate, Wen Wan is Su Xiaoran's roommate and his friend, and Ma Yifan feels duty-bound to clean up the aftermath for them.

"Is there anything wrong with you?"

Two minutes after Ma Yifan entered the door, Zhu Manru remembered to ask this sentence.

"Come and apologize to you, and by the way, I will make a statement to you!" Ma Yifan said, "That video was sent by my friend, and it was transferred to the Internet through our company's APP, and finally became popular on the scarf, causing you a very troublesome situation, which has a lot to do with me!

Ma Yifan said very sincerely, but Zhu Manru didn't say anything, her eyes were empty, as if Ma Yifan was not talking to her.

"My friend still has the full video of that night, and I am ready to post it on the Internet to clarify the incident, no matter what, the matter is because of us and, you can rest assured, we will definitely do our best to eliminate the bad impact of this incident on you!"

Hearing Ma Yifan's words, Zhu Manru finally had a reaction, raised his eyes and glanced at Ma Yifan, and asked, "Do you drink water?"

Ma Yifan scratched his head: "Uh...... Let's have a drink!"

When Zhu Manru poured water for Ma Yifan, Ma Yifan paced to the desk and saw the note on the desk, which confirmed the idea in his heart even more, before he came, Zhu Manru must have had the idea of suicide.

In addition to this note, the desk was filled with all kinds of math books, both in Chinese and English.

Next to the lamp in the corner of the desk, there is a life photo of Zhu Manru, in the photo, Zhu Manru is smiling exceptionally brightly.

Just looking at it, Zhu Manru came back with a water glass, and when she saw Ma Yifan standing at the desk, she hurriedly walked over and ripped away the white paper with the last words written on it, her expression was a little embarrassed.

Suicide is a very cowardly performance, she feels that her cowardice and incompetence are exposed under the eyes of the other party, and she feels that the last bit of dignity has been taken away.

angrily crumpled the white paper into paper balls and threw it into the trash, Zhu Manru gave an eviction order to Ma Yifan: "You go!"

At this time, Ma Yifan dared to go, he was afraid that as soon as he left, Zhu Manru would jump down from this building.

"Uh...... Actually, I ...... I have a math problem I want to ask!" Ma Yifan was in a hurry, and said this.

Hearing the word mathematics, Zhu Manru's eyes finally showed a little brightness, but they quickly disappeared.

Ma Yifan keenly captured the flash in Zhu Manru's eyes, and he decided to use mathematics to save this sad and desperate woman.

Taking out a piece of straw paper from the table at random, Ma Yifan's mind turned, and he wrote down an arithmetic problem of a high-order equation and handed it to Zhu Manru.

Zhu Manru didn't know much about Ma Yifan, and thought that even if such a person had a mathematical problem, it would be a very simple integration problem, but he didn't expect it to be a high-order equation with a lot of depth.

Zhu Manru, who got the question, was like a fish being put into a stagnant water, and suddenly there was a little life. She wrote out the answer process in a hurry, and handed the blank paper to Ma Yifan.

Ma Yifan glanced at it, nodded, made a look of sudden realization, and slapped Zhu Man like a sycophant: "Teacher Zhu, you are awesome, you can solve such a difficult problem so easily!"

Zhu Manru rolled her eyes, she has always been tall, and she has never liked people who smuggle and shoot horses, so she didn't feel anything about Ma Yifan's words.

Ma Yifan was not discouraged, and picked up the manuscript paper and it was another high-level integration question.

......

In an hour, Ma Yifan asked six questions, each more difficult than the other, and finally reached the functional analysis equation that only doctoral students can learn. This is also the limit that Ma Yifan can ask, and if he goes any further, he can't think of it.

With Zhu Manru's cleverness, from the third question, she basically saw that Ma Yifan was deliberately asking these questions.

Although I don't like Ma Yifan's hippie smile, I still admire his mathematical skills. The more boring mathematical research comes to the back, the more boring it becomes, and to learn Ma Yifan's current level, talent and perseverance are the key.

Thinking about this, Zhu Manru's perception of Ma Yifan is also much better. In the final analysis, that day in East Lake Villa, it was still someone who came forward to relieve the siege for themselves.

If it weren't for Ma Yifan, in that situation that day, I am afraid that an associate professor would have to fight hard for a scumbag and others, and stage a scene of a shrew fight that he despises the most.

After solving the last question, both of them fell silent with each other.

Zhu Manru's expression eased a little at the moment, and she found vitality again from a few math problems. She suddenly remembered that many years ago, when she was studying mathematics at MIT in country M, she was deeply moved by this rigorous subject, and since then she has vowed to dedicate herself to the field of research on the basis of mathematics.

Ma Maomin has never been the focus of his whole life and life, I actually have to find death and life for this scumbag!

Zhu Manru smiled self-deprecatingly, and at this moment let go of all his baggage.

"Let's go, I want to rest for a while!" said Zhu Manru to Ma Yifan.

Ma Yifan was squirming and reluctant to go, his brain was spinning rapidly, trying to find something from the limited math books he had read to ask Zhu Manru for advice, so that she could be distracted.

"Don't worry, I'm fine!" Zhu Manru knew what Ma Yifan was worried about and explained.

Ma Yifan scratched his head, and saw that Zhu Manru's face was indeed better than before, so he said: "Okay, I won't bother Professor Zhu's news, but I still have a lot of math problems I want to ask you, and I may come at any time!"

Zhu Manru suddenly felt that Ma Yifan was very cute, and a thought popped up in his heart, why is he also surnamed Ma, he is so much better than the one surnamed Ma.

Nodding, Zhu Manru said: "Yes, if you have any math problems, come to me at any time!"

Ma Yifan said: "Then let's add a WeChat first!"