"Did you really decide?" In the hospital, the old man with a frog face looked at the firm-looking boy in front of him and couldn't help but sigh, "That thing is..."

"No matter what it is, I decided to give it a try." Qing Gong's face was calm, but his eyes were firm as iron. "The current situation cannot tolerate me recuperating my injuries."

"Oh." The old man stared at Qinggong's face in a daze, and finally sighed silently, "Come with me."

Qinggong stood up, smiled gently under Mikoto's slightly worried gaze, and slowly walked with the old man.

The soul-chasing of the underworld was very slow, and the Qing Palace couldn't walk fast. The two of them walked slowly towards the underground floor of the hospital.

On the first floor of the underground is an idle ward and a hospital warehouse. The old man came to the front of a warehouse, verified his palm lines and walked in. The Qing Palace hurriedly followed.

The warehouse is very empty, with only large shelves, with some medicines or some information placed on it, and it looks like a place similar to a pile of debris. Almost no one would come here normally.

The old man slowly walked to the center of the warehouse and stopped in front of a shelf in the middle.

"I didn't expect to come to this place for the second time." The old man shook his head in sighing, pulled out a pile of ragged books in the middle of the shelf, and put it aside. Under the book was a clean blank space in the shape of a piece of book that was rubbed by someone.

"The special thing about this material is that it won't be dirty." The old man smiled self-deprecatingly, "That's why I put a bunch of books on it...Okay."

Before the Qing Palace could react, the old man had already gently pressed the blank space.

With a light click, the space slowly spread to both sides with a stunned expression on Qing Gong, revealing the electronic screen with a very technological sense and a button that looks very old-looking inside.

"This is a secret that I have very few left." Seeing the electronic screen light up, the old man with a frog face smiled and shook his head, and lit a few times on the blank space on the electronic screen, "Get in."

As the old man finished speaking, Qinggong suddenly felt a shock under his feet. Then, the floor tiles under his feet suddenly trembled slightly. Then, like a lift, slowly descended. The two of them stepped on the same floor tiles and slowly disappeared on the ground. As the two of them descended, the hollow above their heads closed silently again.

"This is..." After about a few dozen seconds, Qinggong felt a shock under his feet. The two of them fell to the bottom, but the surroundings were pitch black and they could not see anything. At the same time, a strange sense of familiarity quietly rose in Qinggong's heart.

This feeling...

With the whispering of the Qing Palace, suddenly a little light lit up in the dark space. Then, like stars falling, one bright light after another lit up, slowly dispelling the darkness. When the Qing Palace saw everything around him clearly, even his heart could not help but exclaim softly.

This is a huge space with an active and huge surface. The countless "stars" lit up around are actually warning lights for each device to start. In the space, there are various devices everywhere, which looks a bit similar to your own owlet base. However, with the eyes of the Qing Palace, it can be seen that most of the equipment here is medical.

What surprised him was not these devices, but the huge object placed in the middle of the space.

It was a huge glass cylinder, which looked like a huge upside down test tube. The bottom of the huge "test tube" with a diameter of more than four meters and a length of more than ten meters. Countless tubes were connecting to various parts of the "test tube".

This thing...!

"Aresta?!" Qing Gong widened his eyes and looked at the old man behind him incredibly, his tongue slightly knotted, "Is that legend...?"

This huge test tube, except that there is no blood-red liquid inside, is exactly the same as the thing that Yaresta Crowley, the general chairman of the Academy City, has been soaking in the windowless building!

"Legend?" the old man smiled and shook his head, "That's right."

"I did save that person." A look of memories flashed in the old man's eyes, "That happened decades ago..."

Decades ago, he was practicing medicine in a rural area in Britain and accidentally rescued a middle-aged man who was hunted by a British organization. At that time, he saved the middle-aged man and fled out of Britain and came to Japan. The middle-aged man was Aresta, who later established the school city and served as his chief chairman.

"I have studied some special theories." The soul-chasing man smiled faintly, looked at Qinggong, and said softly, "Based on those theories, I have developed a 'life-sustaining device', which is the thing that is now placed in the windowless building. It is also my only successful experimental product."

Qing Gong nodded, thinking secretly in his heart whether the "special theory" was the magic from the magic side.

"But no one knows that I once had an initial test piece." The old man looked at Qinggong and smiled slightly, "Although it cannot have that effect, I have developed another device through the same principle."

"As for your current physical condition, you can't do any vigorous exercise at all." The old man sighed, "Even larger movements may cause the blood vessels that have just been connected and are very fragile in your body to break, so if you insist on going, this thing can help you."

"This device can comprehensively strengthen your existing physique, including the blood vessels, tendons, veins and even bones in your body." The old man said softly, "so that you will not be unable to move forward because you cannot exercise vigorously."

"That's great!" Qing Gong was overjoyed when he heard this, "I need this now."

There is no problem with his ability, but he was stabbed by Rin before and after breaking through the absolute realm. If there is a way to restore his physical condition, there will be no problem.

"Listen to me first." The old man waved his hand at him, "This thing doesn't directly cure you."

"The principle of strengthening is a special drug." The old man said softly, "By entering the body, a layer of 'membrane' is provided for your body, so that the strengthened organs can bear greater pressure, thus achieving the purpose of strengthening, so that your blood vessels can withstand your vigorous exercise, but..." Speaking of this, the old man's face became serious, "If after that layer of 'membrane' reaches its limit, your blood vessels will once again be unable to bear the load of your sudden strengthening of your vigorous exercise, then it will be very dangerous."

"Uh..." Qing Gong scratched his head awkwardly, "Can you say it more concise?"

"In other words, this thing has a time limit." The old man gave Qinggong a angrily glance. "If you don't return here when the time for strengthening reaches its limit, your blood vessels will explode again with a "bang"! Then you will be dead."

"That's it." Qing Gong smiled indifferently, "So, when will it start?"

"What?" the old man was obviously a little surprised, "You still want to go?"

The meaning of what he said just now was to do his last effort to tell him the danger of this matter, and hope that he could give up such dangerous things.

"Uncle, you know me." Qing Gong raised the corner of his mouth at the Soul Chasing of the Underworld, "It would be fine if there was no hope in this matter. Now that there is hope, I will never give up."

"There are people I want to rescue there." Qing Gong slowly raised his head, looked at the 'starry sky' above his head, and said softly.

Looking at the calm expression of the boy in front of him, the old man was silent for a while and finally sighed silently.

......

Above, in the office of the Soul Chasing in the Underworld.

Mikoto was walking back and forth in the corridor anxiously, while Misaka Chayan and Misaka Yuyun were sitting quietly on the bench beside her, waiting quietly, showing a sharp contrast with her sister.

At this moment, there was a light click and the door opened. Mikoto suddenly looked back, but suddenly her eyes widened.

"Qing...Qing Palace!" Mikoto looked at the figure of the boy in white behind her in shock, "You... are you okay?"

"Don't worry." Qing Gong's face was slightly pale, but his eyes were still bright. He chuckled, and his long white clothes were still spotless, as if they had gone ahead.

"let's go."

(End of this chapter)
Chapter completed!