Before rebirth, he was the assistant of Mebius.

After Ling Feng learned from Kevin where Mebius was, she stopped disturbing Kevin's training. After bidding farewell to the three of them, Ling Feng waited for her in the room where Mebius returned.

After Mebius returned to the room, he looked at the lights in the room and knew that Ling Feng was back.

"Little white mouse, you're back so soon..." Mebius smiled.

"Well, doctor, do you want to go to dinner?" Ling Feng said.

"Okay, little guinea pig, let me take you around here. The Mu Continent is much more prosperous than the Far East." In order to wait for dinner with Ling Feng, Mebius even ordered a dinner that was comparable to a state banquet ordered by Barsky. Didn't eat much.

"Rat, what do you want to eat?" Mebius asked.

"Listen to the doctor. Since I fused the gem, I haven't felt very hungry. Even if I don't eat for a day, I just feel a little empty. I have less time to sleep, and my physical strength will be restored quickly. Martial arts and other things can be learned at a glance, and I feel like I have no real sense of it anymore," Ling Feng said.

"Well...little guinea pig, are you in Versailles?" Mebius said.

"Ah, no, by the way, I brought back the body tissue of Shesha that you have always wanted, Doctor. Now even the Judgment Level Honkai Beast can't kill me." Ling Feng said proudly.

"How awesome, little white mouse, you must be the strongest warrior of mankind now..." Mebius patted his chest with both hands, applauding and laughing.

Ling Feng returned to the Fire Moth after having dinner with Mebius. Ling Feng put Shesha's eyes on Mebius's laboratory, which looked empty because of the lack of experimental equipment.

"Doctor, the laboratory is so big, will it only be Dr. Blanca and you this time?" Ling Feng asked.

"No need to call me 'you', little guinea pig, Mei will be in my laboratory from now on. Blanca left and recommended a person named Klein, and there are two graduate students who have just graduated and they seem to be named Cang..." Cang Zhu and Dan Xuan." Mebius said.

"They are called Cangxuan and Danzhu, doctor..." Ling Feng said directly without any further concealment.

"Ah, little guinea pig didn't expect you to even know this. The two of them must have worked hard to impress you so much," Mebius said.

"...Right." Ling Feng didn't want to comment on these two fish monsters, but considering the great contribution they had made to post-civilization, he didn't expose them.

"Okay, doctor, let's go back. It's getting late. It's still a long way from the accommodation area." Ling Feng said.

"I won't go back. The room on the second floor has been packed up. The laboratory will be ready for use tomorrow. Ming will send someone to deliver all the equipment before tomorrow night." Mebius said.

"Then I'll go back first, doctor." Ling Feng said.

"There will be a high-level meeting at [-]:[-] tomorrow afternoon. Blanca used to go with me, but now that Blanca is gone, you go with me and help me record it." Mebius said.

"Is the Doctor also a senior member of Fire Chaser?" Ling Feng asked.

"Not really, but I represent the entire research department. Okay, little guinea pig, you can live in my laboratory from now on. You don't have to train anyway, so you might as well stay with me in the research institute. There is a lot more room on the second floor. ." Mebius said.

Seeing Mebius say this, Ling Feng couldn't refuse.

"Okay, doctor, I'll move everything here." Ling Feng said. He also wanted to see Mebius every day, so he agreed to Mebius' request.

"Go ahead, little guinea pig, do you need my help?" Mebius looked at Ling Feng and smiled, showing a smile like a mother watching her rebellious child become good overnight.

"No need, Doctor, I can do it myself." After saying that, Ling Feng went up to the second floor of the laboratory and chose the room next to Mebius. He used his power to open a wormhole connecting the previous rooms, one by one. They moved the things over, and Mebius followed. Sitting on Ling Feng's bed and watching him go back and forth between the two rooms, because it was a single room, the room was not big and there were not many things, so she simply sat still. From Ling Feng's perspective, Mebiwu She is very much like a little girl who made a mistake.

"Doctor, I've packed up. You should go back and rest early." Ling Feng then said while lying next to Mebius in a "big" posture.

"Little white mouse, are you driving me away?" Mebius said with a "kind" smile.

"How could it be possible? Doctor can go wherever he wants. I will take whatever the doctor wants. How dare I drive you away, doctor?" Ling Feng was full of desire for survival.

"Hmm~ That's pretty much it..." Mebius said.

"Well, Doctor, I'm a little sleepy. You can ask Doctor to go back first..." Ling Feng muttered in a low voice.

"I want to stay with the guinea pig..." Mebius turned his head and looked at Ling Feng lying down, pretending to be aggrieved and said.

Seeing the disappointed look on Mebius's face, Ling Feng couldn't bear it, so he sat up and took Mebius' hand and said, "Okay, okay, doctor, since you want to stay here, I'll go sleep on the sofa. "

"Little guinea pig, you don't want to be with me..." Mebius grabbed Ling Feng's wrist tightly with his other hand and said, staring at him closely, his eyes seemed to be glowing with anticipation.

Ling Feng came to this world inexplicably and did not know that he died suddenly, so he was not sure when he would suddenly disappear, so he did not dare to respond to Mebius.

Looking at Mebius' fiery eyes, Ling Feng was speechless for a moment.

"Doctor, I...I'm afraid that one day I will...disappear from this world." Ling Feng choked up half of his words. His throat was so sore that he couldn't say the second half of the sentence. The crystals in the corners of his eyes slid down his face. down.

Ling Feng didn't want to leave here. He was afraid that all this would be like a dream and he would wake up at some point and never see Mebius again.

Mebius looked at Ling Feng in front of him. He suddenly became like this. He didn't even shed a tear when he died. Now... it would be like this. Mebius then let go of Ling Feng's hand and took Ling Feng into his arms. In front of him, he held Ling Feng with both hands and let him lean on his shoulders.

"Little white mouse, no matter what it is, as long as I'm here, I won't let it happen. Don't be afraid." Mebius whispered in Ling Feng's ear with an extremely gentle voice.

After Ling Feng's mood eased, Mebius gently wiped away the tears from the corners of his eyes and said, "You belong to me, and I won't lose it easily." Mebius sat in front of Ling Feng and said.

"Thank you, doctor." Ling Feng calmed down and said.

Mebius watched Ling Feng return to his previous appearance, and then said: "I didn't expect our little white mouse to be so afraid of losing me. Is this a confession to me? I also like you very much, little white mouse~" Mebius smiled.

Then Mebius hugged Ling Feng and kissed him gently. The soft touch made both of them blush, but Mebius's offensive did not weaken at all...

"Doctor!" Ling Feng watched as Mebius, who had been holding him down with her body, suddenly sat up and was about to take off her clothes. Ling Feng quickly grabbed Mebius's hand, which was about to unbutton, to stop her dangerous behavior.

"What's wrong, little guinea pig?" Mebius was confused. Could it be that he wasn't charming enough?

"Doctor...this is not good, I am still underage, you will go to jail if you do this." Ling Feng randomly found an excuse to stop Mebius.

"If you don't tell me, if I don't tell you, who will know, and given our relationship, it's not a big deal, right~" Mebius said in a very seductive tone.

"Doctor, I'm actually a little sleepy. You see, your lab assistants and students will be here tomorrow, and there will be a meeting in the afternoon, so let's forget it this time." Ling Feng and Mebius discussed.

"Tsk... I'm really busy tomorrow... Okay, I'll let you go for now. If you resist again next time, I'll tie you to the operating table and do some minor head surgery. Do you understand? Xiao White rat." Mebius said with a "kind" and calm expression, then took off his clothes, lay down, hugged Ling Feng and closed his eyes with peace of mind.