It's Shiro!

Kamijou Touma was getting impatient. After all, there was money to be made, and it seemed like he could even gain superpowers-like strength. How could he possibly refuse something like that?

Living in this city, no one without superpowers doesn't wish they had superpowers, and he was no exception. As for participating in experiments, he didn't care.

He had participated in countless instances of this ability to erase superpowers since childhood, so he didn't feel much resistance to it.

Seeing Kamijou Touma instantly straighten up, Li Yu smiled. Without hesitation, he said, "We can begin now. Just do as I say. This experiment doesn't require you to take any drugs!"

Immediately afterwards, Li Yu explained the breathing technique to the other person and told them to learn it. He wanted to see if the other person could really improve their physical fitness.

If that's truly possible, then it means that physical enhancement alone is feasible, but not with energy, since energy entering the other person's body will be instantly erased.

If it were truly possible to improve physical fitness, then Li Yu had countless methods to do so. Since energy wasn't an option, surely supplementing nutrition would suffice?

Surely I can alter the cells in your body? It's impossible for the Imagine Breaker Extermination to erase all of these things. If simply improving the physical body is erased, then Kamijou Touma is beyond saving!

Under Li Yu's tutelage, Kamijou Touma began to try this special breathing technique. At first, he was not very skilled at it, but he gradually got into the rhythm.

This guy's aptitude is quite good. Li Yu kept a close eye on him, and after seeing him try out the methods he had taught him, Li Yu nodded in satisfaction.

"Now, please get used to this pace. I'll give you a check-up in three days. If possible, don't go to school these next few days. Just stay home and practice this!" Li Yu began to formulate a training plan for Kamijou Touma.

After one round of attempts, Li Yu became increasingly expectant. This might actually work! This was going to be interesting. The opponent's physical fitness had improved, and so had their constitution.

When it comes to fighting other superpowered individuals or True Magic, things will get interesting if he gets close. After all, True Magic in this world are all high in attack but low in defense, so improving the opponent's physical attributes is undoubtedly the best choice.

"Not going to school? Fine, then I'll ask Komoe-sensei for a few days off." Kamijou Touma didn't think much of it. Since Li Yu said so, he would do it. After all, doing experiments was normal.

"OK, I'll go prepare some things and come back to you in three days. Remember to keep the breathing technique I taught you!" Li Yu nodded in satisfaction, said this, and then disappeared before his eyes.

This scene immediately Kamijou Touma's curiosity. What kind of Devil Fruit user was this? He simply vanished? Was it a spatial ability?

Although he was very curious, he didn't think too much about it and began to seriously learn the breathing method taught by Li Yu.

When it worked successfully for the first time, he felt his whole body filled with power, which meant that the thing was useful to him, and he was overjoyed.

That's why he didn't hesitate to ask for leave. After all, it was such a great opportunity, and of course he wanted to seize it and become even stronger.

Kamijou Touma began to seriously practice the breathing technique taught by Li Yu, while Li Yu returned directly to his own world.

After Li Yu left, Aleister said with some surprise, "He seems to have seen through his true nature. Now he wants to improve his physical abilities? I must say, that's a really good idea."

After a moment's thought, Li Yu understood Li Yu's idea. It was truly brilliant, and perhaps this was the most suitable path for Kamijou Touma. After all, True Magic was out of the question, and superpowers were also out of the question; the only thing he could improve was his pure physical attributes.

"Are you just going to let him do this?" Aiwass's voice rang in Aleister's ears; he couldn't understand Aleister's actions anymore.

"It's alright. The Imagine Breaker has already made a deal with Pandora. When she helps me fulfill my wish, his essence will be taken away and he will become an ordinary person. What I'm learning now will be useful to him in the future, and his becoming stronger will only benefit us." Aleister didn't care.

Everything is moving in a positive direction. After cooperating with Pandora, he abandoned many plans because there was no need to continue them. So, Kamijou Touma's situation is no longer a problem.

The only thing Kamijou Touma needs to do now is quietly wait in this world for those Demon God to be dealt with, and then it's all over for him.

He might not even know what happened, Aleister thought to himself as he closed his eyes. He was truly looking forward to that day even more.

Li Yu returned directly to his own world, back to the underwater passage. Li Yu disappeared from his original spot and returned to the school. After locating Nangong Natsuki's position, he Teleportation there instantly.

Li Yu suddenly appeared in Nangong Natsuki's office. Seeing this guy who suddenly appeared, Nangong Natsuki was startled. She couldn't help but glare at Li Yu, this bastard.

Before, she was the only one who could scare others; no one had ever been able to scare her. Now, having been startled by Li Yu, Nangong Natsuki was immediately annoyed. After all, she was the only one who could scare people; no one had ever scared her before.

"So you think you're something special after breaking through? You damned guy!" Nangong Natsuki said with great displeasure, "What are you doing here? And what do you want me to do?"

Since there are no classes now, Nangong Natsuki is well aware that Li Yu usually doesn't come to her with anything good. He basically won't contact her unless there's something important.

"Natsuki-chan, do you have any Gourmet Cells here? Give me some!" Li Yu looked at Nangong Natsuki with a smile. If he didn't have any, then he would have to go to the world of Toriko.

"Yes, what are you here for? What other path are you planning to take?" After saying that, Nangong Natsuki casually took out a tube of Gourmet Cells that she was carrying with her.

This thing is easy to use; you just need to inject it. It was obtained through a trade with Ichiryu.

"No, I made a deal with someone. Give me this thing, I'll modify these cells to weaken them a bit, and then give it to someone else to use." Li Yu explained his situation.

Hearing Li Yu say this, Nangong Natsuki was a little surprised, but she didn't say anything. She just silently tossed the Gourmet Cells in her hand to Li Yu and let Li Yu handle them himself.

"Don't let anyone fool you." Nangong Natsuki said casually, then waved her hand, indicating that Li Yu could leave. Her only worry was that Li Yu would be deceived.

After all, this thing is quite precious in other worlds, and would be very expensive for many people.

Hearing Nangong Natsuki's words, Li Yu was speechless. He couldn't help but retort, "Do you think I'm the kind of person who would be fooled? I'm leaving now!"

He felt helpless. Did Nangong Natsuki think he was the kind of person who was easily deceived? He didn't even know what to say to her anymore.

Armed with the Gourmet Cells given to him by Nangong Natsuki, Li Yu returned to A Certain Magical Index. Emerging from the passage, Li Yu immediately declared, "I need a laboratory!"

As soon as Li Yu finished speaking, his phone received a text message with an address. Aleister didn't ask any questions and simply arranged the matter.

After glancing at the address, Li Yu didn't say anything and directly teleported there. The laboratory arranged by Aleister was newly built, with all kinds of new facilities, and no one was there.

Li Yu only glanced at it before getting busy. The enhancement function of Gourmet Cells was quite remarkable. Li Yu's current idea was to separate some things from the Gourmet Cells that could Avatar, and then give them directly to Kamijou Touma.

Li Yu's powerful learning ability made him one of the world's top biologists with ease. After doing all that, Li Yu got busy separating out some of the useless parts from the Gourmet Cells.

Retaining only the function of Avatar, after several busy days, Li Yu finally produced the enhancement potion. Looking at the blue potion in his hand, the corners of Li Yu's mouth turned up slightly.

According to Academy City's data, this potion can give a person the physical strength of an Iv4 enhanced ability user, and with proper training, becoming an Iv5 is not out of the question.

It's fair to say that this thing has been greatly weakened. After all, the true function of Gourmet Cells is not just this. What makes Gourmet Cells truly remarkable is their growth function, but this thing doesn't have that. At most, it can only grow to the Fifth Tier, and don't even think about going any higher!

It's basically a weaker version of a weaker version, but it's still enough for Kamijou Touma. After all, Iv5 is already an unattainable goal for him, so he definitely won't mind.

Li Yu had no intention of training Touma Kamijou to be invincible or anything; this was just a deal with Aleister. Exchanging the entire Index of Forbidden Books for this thing was pretty great, wasn't it?

After dealing with the medicines, Li Yu completely erased some data in the research institute and returned to his dormitory. Three days had passed, and Li Yu and Touma Kamijou had arranged to meet today.

Back in the dorm, Touma Kamijou was also there, diligently training. After sensing Touma's condition, Li Yu nodded in satisfaction; it seemed he hadn't been slacking off these past few days.

Li Yu appeared in Kamijou Touma's dormitory and suddenly said, "Looks like you haven't been slacking off. Not bad. Today we're starting to use the potion. I wonder if your body will reject it."

Li Yu is currently treating the cult leader like a guinea pig. The potions Li Yu possesses haven't undergone any clinical trials, but the cult leader has high HP, so it's not a big problem!