On the high-speed train to Tongzhou, Lin Fei's gaze was constantly fixed on the long-haired girl opposite him.

The girl had bright eyes, white teeth, and a head of wine-red, slightly curled long hair. Her long eyelashes made her one of the most beautiful women Lin Fei had ever seen.

"Not good."

Lin Fei sat up straight, his gaze falling on the girl's collar. From observing the rhythm and pulse in her fair skin, it was easy to tell that something was wrong with her heart. This was a precursor to a heart condition.

The girl turned her face towards him, her brows furrowed, as if she felt uncomfortably exposed.

"Are you a pervert? Why are you staring at me?"

There weren't many people in the carriage, scattered here and there were about a dozen people. The girl lowered her voice, so she didn't attract the attention of others.

"Huh? Miss, you’ve misunderstood me. I’m a doctor," Lin Fei touched the tip of his nose, only relaxing when he found no trace of a nosebleed. "You seem to have a familial cardiovascular disease, correct?"

"You dirty pervert."

The girl chided him in a low voice before getting up and moving to an empty seat at the back of the train.

"It's driving me nuts!"

The girl hugged her chest angrily, gazing out of the window. She had just finished a meeting in the provincial capital. Despite her objections, the company acted independently. Her mood was already frazzled, and now she had to deal with a pesky pervert on her way home. It was too much for her.

"Cart before the horse," Lin Fei shook his head, watched her retreating figure, and then leaned back in his chair. He pulled out his phone and started searching something.

As he scrolled through the Baidu Encyclopedia entry about the Huatian Group, his eyes narrowed slightly.

Ranked sixth in China's top 50 companies, the business alliance branched across the north and south. It was a huge financial group with the combined funds of countless major families.

"Tongzhou, Hua Tian Group...Old Sly, what are you exactly, having relations with such large companies?"

Hua Tian’s Tongzhou branch is one of the many subsidiaries of the Hua Tian Group. Whether considering its size or influence in the Tongzhou business world, it is solidly at the top.

Lin Fei came to Tongzhou this time to repay a favor.

Three years ago, halfway through his first year in college, he was imprisoned for excessive self-defense after accidentally severing the arteries of two thugs in a struggle.

In prison, he studied traditional medicine under Old Sly. After three years of intensive learning, he became adept in this ancient art.

After Old Sly was released from prison, he used his connections to overturn Lin Fei's case, not only enabling him to leave prison early but also granting him a commendation for bravery.

To repay this favor, after getting out of prison, he came to Tongzhou to treat the illness of Hua Tian's vice president.

Rumor has it, the vice president of Hua Tian is a beautiful woman who suffers from a serious illness.

Lin Fei was not worried about his medical skills.

"Quick, someone! A person has fainted!"

As Lin Fei was contemplating, a frantic shout came from the back of the carriage.

Lin Fei turned his head. The girl who was previously sitting across from him had collapsed in the aisle of the carriage.

He knew her condition was serious, but he didn't expect the illness to strike so suddenly.

The onboard medical staff rushed over from both ends of the carriage swiftly. After anchoring the girl's body, they hastily started examining her.

"She's likely fainted," one of them said.

"The exact cause is unknown, and there are signs of heart failure; immediate emergency resuscitation is needed."

A group of doctors began to resuscitate the girl. Due to the rudimentary medical equipment on the train, coupled with the girl's complex condition, they could not ascertain the exact cause of her illness.

Despite their frantic efforts, the girl showed no signs of improvement.

"Where's the nearest stop?"

A steward hurriedly replied, "Tongzhou Station, the train will stop there for twenty minutes."

"How long until then?"

"About half an hour."

The doctor nodded, looking at the girl who was still unconscious, and muttered, "We're going to have to take her to Tongzhou Hospital then. For now, all we can do is try to stabilize her."

"Half an hour could be the end of her."

At that moment, Lin Fei, leaning against the carriage wall, calmly looked at the girl lying on the floor as if asleep.

A few doctors furrowed their brows upon hearing Lin Fei's words, turned around, and asked, "And who are you?"

"I'm a doctor,” Lin Fei said, “The patient's breathing is erratic, her heartbeat irregular, and there are signs of worsening. If treatment isn’t administered within fifteen minutes, her abdominal organs will fail. By the time we reach Tongzhou Station, she'll effectively be a corpse."

The doctors looked at Lin Fei, their eyebrows slightly furrowed.

The young man in front of them, seemingly only in his twenties and dressed in faded clothing, hardly looked like a doctor.

"Could you show us your medical license, please?

A middle-aged doctor politely requested, "Without any physical examination, Lin Fei was able to diagnose the patient's condition just by observation, which matched their conclusion. This testifies to Lin Fei's extraordinary medical skills.

If they could verify that he is indeed a doctor, it would be completely feasible for him to treat the girl.

Lin Fei laughed, "I'm merely a wandering folk healer, without any medical qualification certificate."

Upon hearing Lin Fei's words, the middle-aged doctor frowned more deeply.

At this moment, they couldn't diagnose the girl's condition, thus they were unsure if Lin Fei's words were merely alarmist.

There was still half an hour from Tongzhou station, what if the girl couldn't last that long?

"We don't need fifteen minutes, maybe she won't even last five minutes," Lin Fei stated.

"What did you say?" The stressed-out doctors turned around to question Lin Fei.

"The girl's vitality is blocked, her carotid pulse is weakening, and she will collapse within five minutes. If you still don't have any solutions, the best treatment time is within the next ten minutes. After that, there will be no chance," Lin Fei explained.

After Lin Fei's words, the girl's blood pressure, heart rate, and other vitals were indeed falling. Just as Lin Fei said, the girl's life was being tightly clenched in the hands of death and she was only one step away from death.