A silvery-blue, star-like liquid flowed in a glass test tube about the length of a finger. Su Bai shook it slightly, then took out a new metal syringe and drew it all out.

He then inserted the needle into a vein in his arm.

Push it slowly.

"hiss..."

A sharp, uncomfortable pain made Su Bai frown slightly.

[Hint: You have used Arcane Blood, gaining +1 skill point!]

[Warning: Your body is reacting negatively to foreign blood!]

...

Su Bai suddenly felt a burning sensation in his nose, followed by a flow of blood. He quickly lowered his head, and then felt an itch in the corner of his eye. A scarlet red color quickly covered his vision.

Blood gushed from his ears and mouth, and as his life points dropped, Su Bai's condition was not good.

But he wasn't too surprised.

The instructions for blood serum do not mention any side effects, but in reality, any blood serum carries a hidden threat.

It means: rejection reaction.

After all, the method of using blood serum is to inject a vial of blood of unknown origin into one's own body.

In reality, this is something no one would dare to try easily.

It could easily lead to someone's death.

In the game, the impact of rejection reactions has been greatly reduced. — Or rather, it's because as players level up, their physical abilities gradually become extraordinary, developing a strong resistance to abnormal reactions.

This claim is not unfounded.

In a previous life, someone tested and found that the rejection reaction when using blood serum, besides being related to the number of times it was used, was mainly influenced by the individual's constitution.

The lower one's physical condition, the higher the probability of rejection reactions and the more severe the side effects.

Once the constitution score exceeds 30, rejection reactions will almost never occur.

Su Bai squatted on the ground, letting the blood flow freely from his seven orifices until it formed a pool of blood at his feet.

The health bar above my head has dropped by nearly 400 points.

Fortunately.

It finally stopped.

He pulled out the empty syringe, which was now called a used metal syringe.

Although its lifespan theoretically has two more uses left.

However, starting from the second time, this product is no longer safe. Using it again will not only increase the probability of rejection, but also have a certain chance of causing viral infection.

The latter is a rather troublesome negative state.

However, these are all major pitfalls that the system did not mark, and the information that players in previous lives had to discover by sacrificing countless lives.

He shook his head and sighed slightly.

Su Bai used the same syringe to draw another vial of pure blood and put it into his belt.

Whether it's a rejection reaction or a viral infection, it's better than losing your life. In critical moments, blood serum can be a lifesaver.

Another syringe was used to draw out the blood of the berserker.

The three blood serums temporarily solved his problem of insufficient supplies during combat.

Su Bai then took out the iron badge.

This is a badge.

【Raven Badge】

【special】

[Level: Normal]

[Level: 15]

[Health: +200]

[Mana: +200]

【Characteristics: None】

[Note: This is an emblem symbolizing the identity of the Raven Doctor. When you wear this emblem, certain beings will react differently to you.]

...

Badges are special equipment.

Although the attributes of this badge are somewhat average, it is definitely better than nothing. The 200-point health bonus has brought Su Bai's health to over 1500 points and his mana to 1020 points.

Moreover, this identity badge also has some special effects.

For example, by wearing different identity badges and visiting regional merchants, you can exchange Frenzy Points for exclusive items.

Or find survivors who survived that disaster.

It will trigger some unique tasks, etc.

Su Bai knows a little about it.

However, the badges of ordinary Raven Doctors are not very valuable; only those at the Deacon or higher level can obtain high-reward missions.

In addition, there are several other special identity badges.

This also needs to be noted.

Su Bai casually put the badge on his chest.

This time, the elite monsters didn't drop any particularly good items, perhaps because the main benefit of the hidden ward is finding health potions.

The severely deformed creature only caused him to lose a cracked bone.

And some copper coins.

The bone was crushed, adding another 10 points to his Frenzy Points, bringing his total to 42.

After searching the hidden wards.

There are no other valuable resources in the clinic.

Su Bai then left.

Back on the street, he opened the system map and could see that he had now lit up a corner of the chaotic district shrouded in mist.

The unexplored areas are still vast.

This also means that there are countless precious treasures waiting for him to explore.

Su Bai took a light breath.

In fact, the clinic is not a particularly rich resource point; it is only famous because of its hidden wards.

There are at least a dozen similar resource points in the Crazy Street area.

These places all share a common characteristic.

It all depends on luck.

If you can obtain rare items like medical records, you can make a fortune.

If you can't get the reward, the profit is actually about the same as that of a regular building.

The truly valuable resource points are those where a few boss monsters and lord monsters roam.

The upscale neighborhood he was about to visit was one of them.

...

Meanwhile, in another corner of the chaotic street, a man with effeminate features and fair skin was carefully hiding in a room.

This chapter is not finished, please click the next page to continue reading!