I started by watching videos, and I chose 10,000 combat power.

The Institute of Sports Science's laboratory building is on the third floor. As soon as the elevator doors opened, the lights of the large open-plan laboratory at the end of the corridor came into view, so bright they were almost blinding.

Several researchers in white lab coats were already waiting at the door. They were both young, around 30 years old. They wore glasses and held folders or tablets, standing in neat rows.

They were notified that an important person would be coming to take a physical fitness test, but the notification did not mention their specific identity.

Therefore, when the elevator doors opened and Luo Fei stepped out first, the eyes of the doctors in white coats lit up almost simultaneously—they recognized Luo Fei.

The man who once soared through the skies and withstood the explosion of a nuclear bomb. Someone instinctively took a step forward, nearly dropping their tablet, their lips trembling slightly.

Then, they saw the person behind Luo Fei—Old Long.

He was dressed in a dark Zhongshan suit, walking steadily half a step behind Luo Fei on the right side.

Everyone in the white lab coats tensed instantly, like puppets pulled by invisible threads, and stood at attention in unison. The middle-aged researcher at the head of the group raised his right hand in salute, and the others in white lab coats behind him followed suit, though their movements were not perfectly synchronized.

Old Master Long noticed this and stopped in his tracks.

He nodded slightly, his gaze sweeping over the slightly nervous faces. A gentle smile played on his lips as he spoke softly, as if comforting a group of students making their stage debut: "Relax. I'm just here to observe. Do what you need to do and don't worry about me."

His tone was as casual as a neighborly grandfather coming to visit, his hands naturally behind his back, his posture peaceful and unpretentious.

However, no one present dared to truly "relax" in his presence.

Director Qin stepped forward from behind Luo Fei and stood next to Elder Long. He addressed the doctors in white coats, saying, "Today's test subject is not General Luo, but his sister. Is all the equipment ready? Please do a final check before the test subject arrives."

His voice wasn't loud, and his tone carried a businesslike air, which automatically put everyone into work mode.

Some people turned and strode into the laboratory, some were working quickly on tablets, and some were saying into walkie-talkies, "Attention all departments, do one last check and adjustment."

The fleeting disappointment in their eyes—perhaps the disappointment of having their hopes of personally testing Luo Fei dashed—quickly vanished, replaced by the composure that came with professionalism.

Luo Ying arrived about ten minutes after Luo Fei and the others arrived at the laboratory.

She was picked up by Director Qin's secretary, a young man in his early thirties wearing a dark suit.

He walked ahead, pushed open the door, and stepped aside to let Luo Ying in.

Luo Ying walked in from outside, wearing a top with the Kyoto University logo, a dark gray plaid skirt with the hem below her knees, and white canvas shoes.

Her hair was tied in a low ponytail, and she had no makeup on. Her eyes were large, and her eyes were moist, not from crying, but from the dry autumn wind in Kyoto.

She saw Luo Fei at first glance.

"elder brother!"

She walked quickly forward, stopped in front of Luo Fei, wanted to hug him but stopped herself, and finally reached out and patted Luo Fei's arm lightly.

Luo Fei smiled slightly, raised his hand and ruffled her hair, making her stray hairs a little messy. She didn't flinch, nor did she reach out to comb them.

Then, her gaze passed over Luo Fei and fell on a group of people standing behind him—Old Long, Director Qin, and several other leaders she had only ever seen in the news.

Her body suddenly stiffened.

Her fingers gripped the hem of her clothes tightly.

Her mouth opened and closed slightly, as if she wanted to greet someone with "Hello, Grandpa" or "Hello, Leader," but for a moment she didn't know how to address them appropriately.

She had never met these people in real life, let alone imagined that she would meet them in such a setting and in such a way. In particular, she never expected that her brother would stand with them, as familiar as old friends of many years.

Luo Fei removed his hand from her head, gently placed it on her shoulder, and patted it.

Her shoulders slowly relaxed, and the fingers that were gripping the hem of her clothes gradually loosened.

"I'll introduce you to them. Don't be nervous, they're all very nice people."

Luo Fei's voice wasn't loud; only Luo Ying could hear it.

Luo Ying nodded and followed behind him.

Luo Fei walked up to Elder Long first, slightly stepping aside to let Luo Ying stand beside him. "This is my younger sister, Luo Ying, a sophomore at Kyoto University."

When Elder Long looked at Luo Ying, his gaze was completely different from when he was looking at documents in the conference room. It was no longer so serious, but rather more gentle, like the winter sun, not scorching but exceptionally warm.

"Your brother has made many contributions to the Dragon Kingdom. As his sister and also a child of the Dragon Kingdom, you must study hard and serve the country like your brother in the future."

He extended his hand, not to shake hands, but to gently pat the head of the younger person like an elder would.

Luo Ying lowered her head slightly, letting the old man's hand gently land on the top of her head. The hand was very light, feeling like a falling leaf.

Her hands stopped trembling, and she stood there quietly, her expression slowly changing from tense to a dazed, unreal feeling.

Luo Fei then introduced her to Director Qin and several other leaders.

Everyone was very kind, and they all said similar things: "Your brother is amazing!" "Study hard!" "If you have any difficulties, you can come to us!"

Luo Ying responded to each question, her voice gradually becoming normal from its initial soft whisper. By the time she spoke with the last leader, she was able to look him directly in the eye, although her smile was still somewhat stiff.

Director Qin glanced at his watch, then turned to the people in white coats and said, "We can begin."

The laboratory was very spacious, with an area of ​​at least 200 square meters and a high ceiling. The ceiling was equipped with shadowless lamps, the same type used in hospital operating rooms, which cast even light without any shadows.

The ground is made of light gray rubber, which is both non-slip and elastic, and you can feel a slight rebound when you step on it.

Various pieces of equipment were placed along the walls, including treadmills, exercise bikes, force tables, body composition analyzers, and some instruments whose names I didn't know and which looked like they came from a science fiction movie. Their metal casings gleamed coldly under the lights.

The entire space has a semi-open layout, with each testing area separated by movable white opaque partitions, which protects privacy without completely closing it off.

The person in charge of the testing was a female researcher in her forties with short hair.

Her surname is Lin, and everyone calls her Professor Lin. She is the director of the Sports Biology Research Center of the Institute of Sports Science of the State General Administration of Sport. She is often personally in charge of the physical fitness tests of national team athletes.

She walked up to Luo Ying, pursed her lips, and tried to make her tone sound calm: "Luo Ying, let's start by taking some basic body measurements, including height, weight, body fat percentage, and bone density. It's very simple, just cooperate."

Luo Ying followed Professor Lin to the body composition analyzer, took off her shoes and socks, and stood on it.

The instrument emitted a slight buzzing sound.

The results came out in less than a minute.

Professor Lin paused for a moment as he looked at the numbers that appeared on the screen and touched the control panel.

Her lips moved slightly, as if she was silently reciting the numbers. After she finished, her gaze moved from the screen to Luo Ying's face, and then back to the tablet in her hand.

She pressed the refresh button, the screen flickered a few times, but the numbers didn't change. She pressed it again, but the result was the same.

She handed the tablet to the staff member next to her and said something in a low voice. Although her voice was so soft it was almost inaudible, Luo Fei heard it clearly—"The data is fine, and the equipment is fine too."

Luo Fei's lips curled up slightly.

He certainly knew there was nothing wrong with the equipment.

Luo Ying practiced the body-refining technique with him, and now she has mastered the second set. According to the system's explanation, the first set of body-refining techniques can double one's physique, and after completing the second set, one's physique will double again. Moreover, after the second set is consolidated, the effect will stabilize.

An average adult woman, whose base constitution is 1, will have her constitution increase to 2 after completing the first set of exercises, and will reach 4 after completing the second set and consolidating her constitution.

Luo Ying's current physical condition is four times that of a normal adult woman.

Her strength, speed, endurance, reaction speed, and immunity were all four times that of a normal person.

Professor Lin was unaware of this. She only observed that the seemingly quiet girl in front of her had an unusually low body fat percentage, an absurdly high bone density, and although her muscle mass was above average, she did not appear muscular at all.

This can no longer be explained by "talent"; it belongs to a phenomenon on another level.

Professor Lin took a deep breath, as if trying to temporarily seal away all her questions and shock. Her expression returned to a calm and composed state, and she turned to Luo Ying, saying, "Come on, next item, grip strength test."

Luo Ying gripped the force gauge and exerted force suddenly.

The numbers on the display screen flickered briefly before freezing. Professor Lin glanced at the number, but didn't ask for a refresh or have anyone else check it, because she herself was the authoritative standard.

She dedicated her life to research on grip strength testing, and the grip strength range of normal women, the grip strength level of athletes, and even the specific values ​​of world records are all clearly imprinted in her mind.

This number is something that ordinary people cannot achieve.

She glanced at the numbers again; they hadn't changed, still that astonishing number.

She opened her mouth slightly, as if to say something, but ultimately closed it, only writing the number on the record sheet, her handwriting slightly more illegible than usual.

The tests followed one after another.

When Luo Ying did the vertical jump, her head almost touched the 3.5-meter-high ruler at the moment she jumped, but she landed silently, only cushioning the impact by slightly bending her knees.

During the shuttle run, she moved between the markers as fast as the wind, and the data from the speed sensor jumped even faster than the recording frequency of the instrument.

During the stationary bike test, she pedaled for ten minutes before her heart rate rose from a little over sixty per minute to just over one hundred. The monitor next to her calmly displayed the electrocardiogram, each peak as beautiful as a textbook illustration, completely unlike the physiological response one would expect from someone engaging in strenuous exercise.

Director Qin stood to the side, watching the data that kept popping up, his briefcase still tucked under his arm, something he hadn't put down since entering the lab.

Old Master Long sat on the chair next to him, his hands resting on his knees, his expression calm.

He wasn't an expert in the field, and those numbers were just numbers to him, but he could read people's expressions—Professor Lin's expression, the other researchers' expressions, and Director Qin's expression.

These expressions all told him that this girl, who looked no different from any other college student, was no ordinary person.

When Luo Ying got off the power bike, a thin layer of sweat appeared on her forehead, and her breathing was slightly more rapid than when she came in, but she quickly calmed down.

She walked over to Luo Fei and asked softly, "Brother, how did I do?"

Luo Fei said, "It's alright."

Luo Ying's lips curled up slightly.

Unbeknownst to her, Professor Lin was currently in a corner of the laboratory, repeatedly checking all her test data.

Each set of data was reviewed individually, and then all the data were examined together to confirm that the numbers all came from the body of the same human woman.

The facts are clear, and the conclusion is obvious.

She put down the tablet, took off her glasses, and slowly exhaled.