Treating Guzman was actually quite simple for Yang Yan.

It was merely a curse, one that Yang Yan could easily see through to find the key, making it naturally easy to resolve.

Besides, no matter what abilities the opponent had, their strength was trivial, hardly requiring Yang Yan to exert any effort.

"Alright, your curse is lifted. Moreover, you'll have immunity to curses of this level in the future."

Yang Yan left this message, not waiting for Guzman's reaction, and walked straight to the bathroom to wash his hands.

The treatment was so swift that Guzman hadn't even reacted.

Hearing this, he was extremely excited.

For a long time, he had been in a state of rapid aging.

The feeling of continuously approaching death filled him with great fear.

Although he had once become numb, the feeling of struggling even to speak still haunted him.

Later, after taking Yang Yan's medicine, his aging stopped, but his condition did not improve.

The physical and mental torment was equally torturous.

Now, all is well.

The feeling of being full of strength was not a mere illusion, but very real.

This feeling was even somewhat strange to him.

He felt as if he had become at least thirty years younger, as if he had returned to those vigorous, energetic years.

"Thank you, Dr. Yang. I'll have them transfer the money to you right away."

Guzman finished speaking, even bowed deeply to Yang Yan, then went to call the people outside.

"If there's nothing else, you can leave!"

Yang Yan gently waved his hand, smiling as he said:

"Tell those waiting outside that if you don't let them leave, you might have to go back alone today."

It turned out that just now, a few people had arrived outside.

Among them was one who was severely injured and unconscious.

However, when they rushed over, eager to enter the clinic, they got into a conflict with Guzman's people outside.

If it weren't for being outside the clinic, and those people worrying that hurting others would displease Yang Yan, thus restraining themselves, Guzman's people might have all been killed.

"What happened?"

Guzman frowned and walked outside, seeing his subordinates and a few others on the brink of a standoff, his heart sank.

He had absolute trust in Yang Yan's words.

Although his subordinates were skilled, they might not be a match for these people.

"My lord, these people tried to break in, but because Dr. Yang instructed us not to be disturbed, we stopped them."

Quinn looked at Guzman and spoke respectfully.

However, he dared not relax in the slightest because he sensed an extraordinary aura from the group opposite them.

This aura even made him feel pressured and sense a threat of death.

Guzman immediately stepped forward, apologizing:

"Sorry, everyone! Because Dr. Yang was examining me and didn't want anyone to interrupt, my subordinates behaved this way."

"If it caused any inconvenience, I apologize to you all here."

Seeing an old man like Guzman apologizing to them, those who didn't want to cause trouble looked somewhat relieved.

Instantly, the atmosphere here finally eased a bit.

"Is Dr. Yang available? Can we go in now?"

A man who seemed to be the leader stepped forward and asked Guzman.

"I've been treated, but for other matters, you'll need to ask Dr. Yang inside. I have some things to attend to, so I won't delay your consultations."

Finishing his words, Guzman signaled to Quinn and the others, then walked away directly.

"Captain, should we get rid of those guys?"

"Just a bunch of ordinary people, thinking they can flaunt just because they have some money, they're courting death."

A slightly younger person stepped forward and said.

The leading man waved his hand and said in a deep voice:

"Don't cause trouble, let's first get Dr. Yang to treat his injuries."

"After all, this is a clinic. If we stir up something unpleasant here, offending him, he might refuse to help us in the future when we get injured."

The rule in the Hidden World is to follow other's rules when on their turf.

Of course, it's a different story if you're here to cause trouble.

Except for the unconscious one, the rest were not seriously injured.

Of course, the so-called "not serious" is based on the Hidden World's standards.

With the standard of the present world, these people would already be considered dead.

"Take it slow! This potion can accelerate his body's recovery, as long as you don't sever an artery directly, they will be fine. So, don't rush."

For treating these individuals, it wasn't Yang Yan who took action, but rather Catherine.

Since Yang Yan planned to train her to take appointments, the sooner she gets hands-on experience, the better.

Moreover, the life force of these people is quite robust, making them perfect as guinea pigs for Catherine's practice.

Seeing that Yang Yan himself was not taking action, but instead letting an ordinary woman do the work, these people couldn't help but exchange glances, their faces full of black lines.

Of course, all they could do was watch.

After all, Yang Yan's strength was well-known, and since he saw no issue, there definitely was none.

In the Hidden World, reputation is equally crucial.

Therefore, no one wanted to ruin such a reputation lightly.

"Boss, aren't you worried at all? I don't see how that woman can heal us?"

Someone whispered lowly to the leading man.

"Shut up, no nonsense!"

The leading man raised an eyebrow and cursed harshly:

"I don't know if the woman is capable, but that potion is extraordinary."

"I'm pretty sure that stuff comes from something in the Hidden World."

"I believe that with that potion, treating our injuries is entirely possible."

"Besides, if we are fortunate enough, our strength might even increase significantly."

As he said this, his eyes were fixed on the potion in Catherine's hand, his fists clenching subconsciously.

Hearing this, the others suddenly realized, and they too looked at the potion in surprise.

If it weren't for their captain saying that the clinic's owner was likely someone from the Hidden World, they would have already attempted to seize it.

"Yes, that's right, just like that. Now you only need to clean the stitched wound and apply some potion."

Seeing that Catherine had stitched up the last person's wound, Yang Yan nodded in satisfaction and then reminded her.

Although Catherine was just an ordinary person, her talent was commendable.

Moreover, she was diligent enough.

Her hands were steady.

She handled many detailed operations excellently.

This was truly commendable.

It also made Yang Yan more confident in training her to take appointments.

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