Chapter 260: The Amazing APTX4869, the Shocked Crowd—Can It Really Reverse Aging?

"Is this the manga the boss mentioned?"

Hearing Yanfei, curious, looked at the manga with a blue, chubby cover.

It's a cat without ears?!

And it's a fat one too!

It looks surprisingly interesting.

Hearing Yanfei picked up the manga and went aside to read.

Though she didn't fully understand the world in the manga, the novel gadgets amazed her.

"This 'Bamboo Propeller' thing is incredible—it can make someone fly straight into the air!"

"What's this 'Anywhere Door'? It can lead to any place?! That's too miraculous!"

"It can even travel through time?! If only I had a time machine."

Every time she saw a new gadget, Hearing Yanfei gasped out loud.

She couldn't even imagine,

what Teyvat would become if it had these gadgets.

"I wonder what manga Hearing Yanfei is reading—it looks really interesting."

Hearing Yanfei's occasional outbursts of unfamiliar words made Miss Xiangling itch to see it.

If only she could take a look.

But remembering the boss's rule—one manga per day—and her love for food,

she ultimately suppressed the thought.

At this moment,

Lisa had finished reading the manga.

Putting down Detective Conan, Lisa's eyes shimmered with astonishment.

The murder methods in the manga were incredibly ingenious.

If Teyvat had no elemental powers and were just an ordinary world,

Lisa wondered whether this book might be revered as a classic by certain people or organizations.

There were simply too many murder methods inside.

If the details were refined a bit more, they might truly be perfect crimes.

No one would ever find the killer.

It's practically essential reading for home life, travel, and neighborhood disputes!

Of course, beyond that, what interested her most was the mysterious drug APTX4869.

It can make someone revert to childhood!

But the mortality rate is rather high.

So far, the only known successful cases are Conan, Shiho Miyano, and that little sister.

As for the witch (Ace) Vermouth having taken it, she wasn't sure.

In the manga, she's an extremely mysterious woman.

"If only I could get one APTX4869 pill—I could study it thoroughly, maybe even discover something real."

Lisa thought to herself.

At this moment,

the system updated.

【Customer Lisa has finished reading Detective Conan and received reward: Complete APTX4869 Data, One Perfect APTX4869 Pill.】

【Complete APTX4869 Data: Researched and compiled by the manga character Shiho Miyano.】

【Perfect APTX4869 Pill: Processed by the system—this drug has zero side effects and reverts the user to a child's state.】

"Tsk tsk—complete data and a perfect pill? How perfectly suited for Lisa."

Han Feng's eyes flickered with interest.

He just wondered whether Lisa could even understand the data,

since it came from another world.

A knowledge system entirely different from Teyvat's.

But Lisa is a genius witch born once every few centuries—perhaps she truly could unravel it.

After all, many things in this world cannot be judged by science.

If she truly succeeded, it would be fascinating.

APTX4869, in a sense, is a longevity drug!

Han Feng grew eager.

Hum—

A dazzling light suddenly appeared, enveloping Lisa.

A vast amount of information flooded into her mind.

This phenomenon immediately drew Miss Xiangling and Hearing Yanfei's attention.

"Is this the reward from the manga?"

Seeing others' calm expressions, they confirmed their guess.

Their curiosity deepened,

wondering what kind of reward this beautiful big sister would receive.

Moments later, the light faded.

Lisa slowly opened her eyes, a flicker of interest passing through her beautiful gaze.

"Is this the complete knowledge of APTX4869?"

Although many of the terms and formulas within were beyond her understanding,

with this data, she could study it gradually.

"Especially this…"

Lisa pinched a pill in her hand and examined it curiously.

This must be the miraculous APTX4869.

I wonder if it has any side effects.

As if sensing Lisa's doubt, Han Feng spoke up to explain.

"This pill is a perfect APTX4869, with no side effects whatsoever; once ingested, it instantly returns you to childhood."

Upon hearing Han Feng's words, everyone in the shop was utterly stunned.

"Return to childhood? Is this the legendary reversal of aging?"

"What an incredible pill—if I had one, I could take it when I'm old and live another life!"

"The Detective Conan manga, right? No, tomorrow I absolutely must come take a look."