I'm a proper student; I only take nine kinds of potions every day.

"Thank you, Brother Mouse, for this amazing gift of bacteria, delivered at the cost of your life!"

He threw the empty shell of a body into the trash can in the corner.

As he continued his rambling, new prompts kept appearing on the panel.

[Copper plague has devoured Yersinia pestis! Progress +0.002%.]

[Copper spores have engulfed Streptococcus beadans! Progress +0.001%.]

……

[Copper plague has devoured the rabies virus! Progress +0.003%.]

The copper plague, like a wild dog that hadn't eaten for three days, plunged deep into his veins, swallowing up all the pathogens that the rat had just brought him, bite by bite.

Ivan stared at the panel for a few seconds.

The overall progress of the copper epidemic jumped from 0.21% to 0.221%.

A mouse, a 0.011% improvement.

"Different levels of the virus provide different progress updates."

He silently filed it in his mind.

"Plague-related doses are 0.002, and rat-bite fever-related doses are 0.001."

"Rabies is the worst, give it 0.003."

"While the ability to engulf conventional viruses is effective, it is not very efficient."

"But it's better than nothing. It can also solve the need to drink blood every day."

"A mouse has about eight milliliters of blood. To get one hundred milliliters a day, you would need about thirteen mice."

"Thirteen mice can bring about 0.13% progress."

He nodded.

"It's not slow."

"Besides rats, we can also get some bat blood if we have time. That stuff should be more exciting than rats."

Ivan licked the remaining blood from the corner of his mouth, his eyes narrowing slightly.

He bent down and picked up the knife; the blade gleamed coldly in the morning light outside the window.

The secondary brain slowly crawled out of his chest and landed steadily in his palm.

Ivan gave it instructions.

"Help me kill the rats."

The sub-brain waved the bone spur that represented the "middle finger," like a soldier receiving a mission and saluting.

It seems that in its instinct, giving the middle finger is equated with saluting.

Ivan opened his demon hunter's vision.

The outline of the entire house appeared in a different form before his eyes.

Several pale red streaks of light, like small flames on a gas stove, were slowly moving in the cracks in the walls, behind the cabinets, and between the gaps in the wooden beams of the ceiling.

This is residual heat.

Each streak of light corresponds to a warm, living little life.

"If Hill knew that the first time I activated my Demon Hunter's Vision, my target was the rats in my house..."

He grinned.

"She will kill me..."

He could tell that Hill was a dignified girl who cared about her image and was competitive.

My current behavior will definitely provoke her protest.

While I was thinking, the first ray of red light appeared in the gap between the two layers at the bottom of the cabinet.

Ivan hadn't even had a chance to move his feet yet.

The secondary brain had already been ejected from his palm in a flash.

The tiny monster, no bigger than a palm, darted across the kitchen at a speed that was impossible for a normal person to follow.

With its five bony claws pressed firmly against the ground and its entire body flattened, it instantly rushed into the less than five-centimeter gap below the cabinet door.

A short, sharp creaking sound came from inside.

Two seconds later, the secondary brain emerged from under the cabinet door, its middle finger bone tip holding a rat with its head pierced through.

The rat's limbs were still in the final spasms, and fresh blood slowly dripped down the bone spurs onto the floor.

"So fast. So ruthless."

Chapter 55: Should I Avoid His Edge? (Please Read On!)

Ivan looked at his little helper with admiration in his eyes.

"As expected of something I created from my own brain. Its comprehension, execution, and locking abilities are comparable to top-tier AI."

Your own eyes are infrared lock-on.

The secondary brain is the hunting robot.

He squatted down and gave the secondary brain a thumbs up.

"If we brothers join forces, how can we possibly defeat a single general!"

The secondary brain raised the bone spur and lightly touched it to his thumb.

"Brother is right!"

Evan muttered to himself, and together with his secondary brain, began a highly efficient mouse-catching operation.

The whole process resembled a precisely orchestrated combat exercise.

Ivan was responsible for using his demon hunter vision to lock onto targets, while the secondary brain was responsible for sneaking in and attacking.

In wall cracks, behind cabinets, in ceiling beams, and next to bathroom drainpipes.

Once a target is marked by the demon hunter's vision, the secondary brain will slip through in an incredibly nimble way, sending the target to heaven.

In just ten minutes.

All the rats in the entire apartment were eradicated.

Evan grabbed the large straw basket in the corner and counted them one by one.

There were fifteen of them, all brown-haired rats fattened up in the sewers of Guding Street.

They came in all shapes and sizes, a complete family.

He squatted on the floor, squeezing the blood of each rat into his mouth.

The second one was still a bit hard to swallow, but the third one was easier to eat.

After the sixth rat, he even began to appreciate the subtle differences in the taste of blood from rats of different ages.

Because each mouse carries different types of pathogens, the rate of increase also varies. On average, Evan confirmed a certain data.

A single house mouse can contribute approximately 0.01% to the progress of the copper plague.

15 units brought in 0.15% of the progress.

After the blood was fully consumed, the overall progress of the copper epidemic successfully climbed to 0.371%.

After cleaning up the rat carcasses on the ground, he put the basket of corpses into a bag and went downstairs to the alley.

The little green-eyed wildcat that had been scared away by Pulis earlier was squatting there again, its eyes cold as it looked around.

Evan tossed a bag of mice over: "This is a bag of mice."

I hope you can get through this winter.

Back upstairs, as he stood by the sink washing his hands and face, he found his stomach surprisingly full.

"I don't even need to eat breakfast today."

"No wonder Pris only ate a little for lunch; he's really not hungry after drinking so much blood!"

With a sigh, he looked at his secondary brain.

During the collaboration just now, Ivan also thoroughly understood the performance of the secondary brain.

The main brain and the secondary brain can send instructions to each other, but the transmission is not equal.

The commands issued by the main brain have a high information density, and the secondary brain can understand complex tactical instructions.

Conversely, the secondary brain can only transmit a very limited amount of information to the primary brain.

It's nothing more than the most basic action signals like "wake up," "move forward," "lie down," and "bend over."

The maximum control radius between the two heads is approximately ten meters.

Beyond this distance, the secondary brain will enter a semi-automatic state, relying on instinct to act.

The bone spurs on the secondary brain are extremely sharp and can easily pierce human skin and brittle bones.

The bony shell that surrounds the brain tissue is about twice as hard as the adult skull.

Its maximum jump height can reach two meters or three meters.

After replenishing his blood, Evan casually grabbed a gray woolen jacket with a missing button from the hanger and put it over his faded old shirt.

The shoes on his feet were secondhand leather shoes that Old Tom had repaired three times.

He took the tin biscuit box out of the drawer, stuffed the remaining six dollars and eleven cents into his pocket, locked the door, and left the apartment.

"The potion is gone, and I'm taking the last six dollars with me."

He sneered inwardly.

"Let's see how they curse me next."

As I walked out of the building, the hands of my pocket watch pointed to eight o'clock.