There is nothing impossible in advanced alchemy. -Universal skill to match the other world-

"... you're tired"

A hundred years.

I've spent so much time on alchemy since I was born.

Heal fatigue from prolonged work with magic medicine and perform alchemy for days on end.

I've been living like that... lately, I'm getting tired of using magic pills.

I know the cause. Age.

No matter how much magic medicine is slowing down your body's aging... after a hundred years, your body will fade naturally.

If I were a single alchemist, I might be able to make as much medicine for immortality as I do... unfortunately, I'm only half a serving now.

That's why we can't die yet.

"... Is it time to use that hand"

It was predictable that one day these days would come.

And I'm already ready to deal with it.

Young.

Keep your memory alive and rejuvenate your body.

The magic drugs needed for rejuvenation are stored in a warehouse in the corner of the lab.

This is a completely original demonic prop that I've assembled from scratch.

In theory, drinking this will rejuvenate you.

I tried it with a rat dying of aging and the rat was a little younger while sleeping for a few months and ended up back in the kid.

But I've never experimented with humans before - the point is, it's like using yourself to experiment with humans.

Many times now, I have become an experimental bench for new drugs that I have made myself.

However, the risk level of this medicine is different from that of other medicines.

I can assure you that I will remember.

For that reason, we made drugs based on complex theories.

But on the contrary, there is no other guarantee.

I don't know how the effects of rejuvenation will come out.

After taking the pill, I will be slowly rejuvenated while sleeping... but I can't predict how long that sleep will last.

Even the rats took months, so in the case of humans it would probably be on an annual basis.

Worst case scenario, it could even die as it is.

"Master..."

If I had a master at a time like this, I might have come up with other ways to deal with it.

But I haven't seen my master in ten years.

I'm sure he's already abandoned me.

If so, I'll have to do something about it myself.

Well, if the drug fails, it just sucks to die.

It just dies a little faster than dying of aging as it is.

"As a bet, it's not bad."

That's how I shrugged and took the medicine out of the fridge that was in the corner of the room.

Then open the hatch on the shelter in the basement.

This underground shelter was built to take rejuvenating drugs.

Until my rejuvenating pills work, I will fall asleep forever.

If someone attacks me in the meantime, or engages me in a disaster, I will die.

To avoid that, I made a shelter with all the technology I could have.

Only me and my master can open the shelter.

This is the safest place in the world.

"Finally, goodbye to this look too"

When I completely sealed the shelter door and activated multiple locking mechanisms, I looked in the mirror in the corner of the shelter.

There's an old man with gray hair.

What does it look like the next time it happens?

With that in mind, I lay in the shelter bed and activate the timer on my pillow.

I made this to find out how long I've been asleep.

For once, we make it so that it can be measured until 1999, but it won't go that far to the boulder.

When I made sure the timer was working, I drank the pills all at once.

Along with the intense flavour, the consciousness becomes distant.

I fell asleep for a long time.

◇

"... have you been safely awake"

With a slowly awakening consciousness, that's what I squeal.

Apparently, he never died while asleep.

With a blurry head of sleep, I glance at the timer.

Then... I woke up drowsy at once.

Nothing, I wasn't giving the timer the ability to wake up.

The time shown there was shocking.

"500 years...!?

The timer on the pillow referred to 500 years.

Taking time to rejuvenate was predictable.

But...... I didn't know it would take this long.