Before rebirth, he was the assistant of Mebius.

Unknowingly, it was seven o'clock in the evening, and the sky above Mu Continent became dim, telling people that the day was coming to an end.

The April breeze blew past Ling Feng's ears. It was a little cool and mixed with a slight salty smell. Maybe it was because the Fire Chasing Moth's base was relatively close to the sea.

But no matter what, it all gives people a feeling of freedom and is very comfortable. Maybe this is why those rich people prefer to place their homes by the sea.

"Oh - ah - let's save more Honkai energy next time. My whole body is sore. I haven't felt this way for a long time." Ling Feng stretched after returning to the research institute.

Ling Feng lazily sat down on the sofa, recalling everything about today, but he seemed to suddenly think of something, and suddenly opened his eyes and sat blankly.

"Tomorrow is the doctor's birthday... I actually forgot about the gift." Ling Feng whispered to himself while holding his forehead with his right hand.

"Huh? Ling Feng, you're back." Danzhu said after returning from outside the institute. It seemed that he and Cang Xuan should have dinner.

"Well, I just came back." Ling Feng said absently, seeming to be thinking about the gift.

"Ling Feng, what did you do today? I've seen you go out since the morning. Why are you back now?" Danzhu came over and asked.

"I went to the war department for a walk. What's wrong? Danzhu."

"It's nothing, I'm just a little envious of you. You can go out at any time and go wherever you want."

"..."

"Cang Xuan always says it's dangerous outside and it's safer here, and won't let me go out," Danzhu complained.

"Ling Feng, what do you think? How can I be so unlucky that I encounter a Honkai Beast when I go out? Please help me persuade Cang..."

"I think you should listen to your sister." Ling Feng said perfunctorily, while searching for keywords such as "What gift should I give a girl on her birthday?" on her phone.

"...Okay, okay." Danzhu said a little speechlessly, silently sitting next to Cang Xuan, helping her sort out the various materials piled up on the table.

"Gold, silver and jewelry? Doctors probably don't like this kind of thing. Flowers... are too cliché. Why don't we get some rare experimental materials? Well... forget it, it's a little too weird. Let's just stick with jewelry or something like that." Ling Feng thought about it and began to use the power of the First Herrscher to build the prototype of the jewelry, and then added patterns and decorations bit by bit.

"Hmm...isn't it a little too fancy? There are just too many decorations."

"Tsk...it seems a little bit. Forget it, let's make another one." Ling Feng casually opened the wormhole connecting the imaginary number space and threw the necklace in his hand. Cang Xuan and Danzhu beside him had already become accustomed to it. I ignored it completely and continued to do my work.

After working for more than half an hour, Ling Feng finally made a necklace that looked relatively simple yet gorgeous.

A slender platinum chain carries two intertwined "infinity" symbols. The shape is the same as Mebius's earrings, but the difference is that one of the two intertwined "infinity" symbols is white and the other is black. , "Mobius" is engraved on the white side, and an "F" is engraved on the black one, but the latter is not conspicuous and cannot be found at all if you don't look carefully.

"Hmm... This looks much better." Ling Feng then used his powers to construct a green and black gift box. After carefully placing the necklace, he placed the gift box into a space dedicated to storing important items. , Ling Feng felt relieved.

"Finally finished - I'm so exhausted." Ling Feng sat on the sofa and stretched.

"Ling Feng, can you come here?" Klein came out of the laboratory at some point.

"Well, here we come."

"Klein, go take a rest first." Mebius said to Klein.

"Okay, doctor." Klein then left the laboratory.

"Mouse, can you give me some more of your blood samples? I've used up the last one."

"Of course." Ling Feng sat down on the operating table consciously, skillfully lifted up the sleeve of his left hand, and waited for Mebius to take a sample.

After Mebius sterilized Ling Feng, he took a needle and gently inserted it into his forearm.

Ling Feng's blood began to flow from the needle through the rubber tube into the test tube.

But for some reason, Mobius seemed to smell something and suddenly put his nose to Ling Feng's chest. He seemed to smell something wrong and had a somewhat displeased expression on his face.

"What's the matter? Doctor."

"Little guinea pig, did Alicia come to see you today?" Mebius narrowed his eyes and asked with a stiff-looking smile.

"Alicia, I saw her at the combat headquarters this morning. I said hello and then left." Ling Feng explained.

"Is that so? Um...Okay." Mebius said, replacing the filled test tube with an empty one.

"Um... Doctor, are you feeling better soon? I seem to be feeling a little dizzy." Ling Feng asked, looking at the three test tubes of samples next to him.

"It'll be fine soon. Don't worry, I'm careful not to make you faint. Just lie down for a while and you'll be fine." After saying that, Mebius took out the fourth tube of sample and took out the needle.

Mebius habitually handed Ling Feng a cotton swab. Ling Feng took the cotton swab and put it on the table.

"Doctor, you forgot again." Ling Feng reminded, the needle hole just healed within a few seconds after Mebius pulled out the needle, so there was no need for a cotton swab.

"Forgot. Does the white mouse want to eat candy?" Mebius asked, picking up the cotton swab on the table and putting it back.

"sugar?"

"I heard that children in China will be rewarded with a piece of candy after getting the injection, so...guinea pig, do you want it?" Mebius said with a smile.

"I'm not a child, and I don't like eating sweets very much...Doctor, you'd better leave it to Gracie."

"But this is what I did after talking for a long time in the afternoon, and it was only a little successful."

"Little guinea pig, don't you try it?" Mebius held a candy wrapped in white paper in the palm of his left hand, pointing directly at Ling Feng, making him look a little pitiful.

"The doctor made it himself, so I have to try it. Hehe, after all, this is the first time I have the opportunity to eat something made by the doctor." Ling Feng took the candy and stuffed it into his mouth.

"Hmm... It's a little weird, but it's still delicious. It's the first time I made it. It's amazing, doctor." Ling Feng forced himself to smile and praised.

"That's good, let's eat them all." Mebius gave the remaining three candies to Ling Feng.

"Thank you, doctor." Ling Feng took the candy and put it in the pocket of his coat. Then he got off the operating table and sat in a corner of the laboratory, waiting for Mebius to finish the experiment and go to eat.

"Hmm...it's a bit unpalatable. Only the layer of powdered sugar on the surface has something to do with the candy, and the rest is an indescribable bitter taste." Ling Feng complained softly in his heart.

Mebius was carefully observing the experimental data on the side and casting his gaze at Ling Feng from time to time.