Park Dong-hyun pushed open the door to the laboratory, and his brow furrowed.

"Why did you make such a mess of the test bench?" Park Dong Hyun grumbled, and then began to clean up the things on the test bench.

All kinds of tools on the test bench were sorted one by one and returned to where he should go, while some discarded test tubes and other experimental waste were discarded into the trash.

Park Dong-hyun didn't know that it was a virus stock solution, because the general virus stock solution would be stored in an incubator or freezer, and the test tubes that were still on the test bench were treated as garbage.

After cleaning up the test bench, Park Dong-hyun took the garbage out of the laboratory and threw the garbage directly into the garbage chute upstairs.

Back in the laboratory, Park Dong-hyun secretly said in his heart: "Why didn't Oh Ren come today?"

Thinking in his heart, Park Dong-hyun took out his mobile phone and dialed Yang Qing's number.

The phone rang for a long time before it was connected, and Yang Qing's confused voice came from inside: "Teacher!"

Park Dongxian listened to the voice on the phone, Yang Qing was sleeping: "I'm sorry, I saw that you didn't come to the laboratory and called to ask, but I didn't expect you to sleep!"

"I did an all-night experiment yesterday, and I won't go to the lab today!" Yang Qing said.

"Well, then you can rest well!" Park Dong-hyun hung up the phone after speaking.

At this time, a prompt message on the phone kept flashing, and Park Dong-hyun looked at the teacher exchange group of his school, and clicked on it immediately.

As soon as he entered, Park Dong-hyun saw that the message being sent in the group seemed to be about Dean Kim.

"Did you know that Dean Kim has become African?"

"What Africans?"

"Dean Kim's face has turned black, just like an African!"

"Ah, how can it be, it's normal that I've seen the dean in the morning!"

"Really, I also saw that Dean Jin has become very dark, and not only his face is black, but I also see that his hands are also very black!"

"What are you talking about?"

"Don't believe me, I'll send you a picture to see!"

"Dean Kim.jpg"

"Wow, really!"

"What's going on?"

"Just now, Dean Jin was smacking things in the office like crazy!"

"It's horrible!"

"What about Dean Jin now?"

"Said to have been sent to the hospital!"

“……”

Park Dong-hyun was also extremely surprised when he looked at the photo of Dean Kim at this time, judging from the photo, Dean Kim's entire face was as black as carbon gray, and if he didn't look closely, he really couldn't believe that this was really Dean Kim.

"This photo can't be PS, right?" someone in the group asked.

"Definitely not ps"

"Now everyone is talking about this, not only I am the only one who has seen it, but many people in our academic affairs office have seen it!"

"yes, I saw it too!"

"I'm accompanying Dean Jin in the hospital now, and the current doctor has checked that everything is normal, and they can't be sure what is wrong with Dean Jin!"

"It's normal, it's all black like that, is it normal?"

"yes, how can it be normal!"

"I think I'd better stay in the hospital!

“……”

Park Dong-hyun looked at Dean Kim in the photo, and then at the black mouse still in the glass box, and a thought suddenly popped up: "This can't be Wu Ren's doing!"

As soon as this thought appeared, it could no longer linger, Park Dong-hyun thought that Oh in had said that he would help him get angry, and now Dean Kim's skin suddenly turned black, it was very likely that Oh Ren did it, and the more Park Dong-hyun thought about it, the more likely it became, so he turned around and left the laboratory immediately.

"Be sure to ask in person!" Park Dong-hyun said secretly as he stood in the elevator.

After getting out of the elevator, Park Dong-hyun walked towards Yang Qing's dormitory with hurried steps.

Soon Park Dong-hyun came to the graduate dormitory where Yang Qing lived.

"Bang...... Bang...... Bang......"

"Open the door...... I'm Park Dong-hyun......"

"Bang...... Open the door ......"

After knocking on the door a few times, Park Dong-hyun heard Oh In's voice coming from the house: "Wait a minute!"

Park Dong-hyun stopped when he heard this, and after waiting for a while, the door opened, and Oh Ren asked with sleepy eyes, "Teacher, why are you here?"

"I have a question for you!" Park Dong-hyun said and walked in.

Walking into the dormitory, Park Dong-hyun made it on the stool in the room, looked at Yang Qing and asked, "Dean Kim's skin has darkened, did you do it?"

Yang Qing heard Park Dong-hyun ask this question, and immediately perked up and said, "Ah, who has turned black?"

Hearing Yang Qing's words, Park Dong-hyun took out his mobile phone, took out the photo of Dean Kim to Yang Qing and said, "Look at it, is the current Dean Kim as black as your mouse!"

"I'll take a look!" Yang Qing said and put Park Dong-hyun's mobile phone in his hand.

Looking at Dean Jin's photo carefully, Yang Qing secretly said in his heart: "Haha, let you taste what it's like to be an African!"

Raising his head, Yang Qing said to Park Dongxian: "Teacher, this Dean Jin must have done too many bad things and suffered retribution!"

"Well, you're right, he's been retributed!" Park Dongxian looked at Yang Qing and said, "You said yesterday that you wanted to help me vent my anger, and today he will become black, did you do this!"

Yang Qing shook his head and said, "Teacher, you don't know what level I have, how could this be my doing!"

Park Dongxian looked at Yang Qing's eyes and said, "You really didn't do it!"

Yang Qing nodded and said, "It's really not!"

Park Dong-hyun said disappointedly when he heard this: "I thought you used the DNA fragment used on the mouse on Dean Kim!"

Yang Qing heard Park Dongxian's words and suddenly realized: "It turns out that the teacher is not worried about that Dean Kim!"

Park Dong-hyun immediately said disdainfully when he heard this: "How can I worry about him, I won't frown when he dies!"

Hearing Park Dong-hyun say this, Yang Qing couldn't help but breathe a sigh of relief, just now I thought that Park Dong-hyun was worried about Dean Kim, but now it seems that it is not at all.

"Teacher, in fact, I did this thing, I just want to teach him a lesson!" Yang Qing admitted.

Park Dongxian heard Yang Qing's answer, and immediately looked at Yang Qing with a pair of fiery eyes: "How did you do it?"

Yang Qing looked at Park Dongxian's fiery eyes and was a little uncomfortable: "It's the method you taught me, teacher, I extracted Dean Kim's DNA and then recombined the DNA fragments!"

"Is the DNA you found before also effective for people?" Park Dong-hyun said in amazement.

"Yes, don't you already know that DNA teacher?" Yang Qing said.

Park Dong-hyun said: "I know, but I didn't expect that the DNA fragment you found could be directly used on human bodies!"

Yang Qing replied: "It's not that it can be used directly, it still needs to be changed a little bit!"

"What's changed?" Park Dong-hyun asked.

Yang Qing replied: "I just changed the sequence of the gene, and then it's okay!"

"What exactly did you change?" Park Dong-hyun continued.

Yang Qing immediately backlashed: "AAAGTCTGAC......"

Park Dong-hyun heard the genetic sequence of Yang Qing's back, and immediately waved his hand and said, "Wait a minute, we'll talk about it when we go back to the laboratory!"

Yang Qing nodded and said, "Okay, then teacher, you go out first, and I'll change my clothes!"

Park Dongxian found that Yang Qing was still wearing pajamas at this time, and immediately coughed and stood up and walked out: "I'll wait for you at the door!"