I took 'Rejuvenation Medicine' and woke up in the world 500 years later. I was asked to be an adventurer belonging to the Alchemy Guild.

The request I received should have been one that hardly required me to do anything: guard in a 'safe zone' where demons would never show up...

Only then, for some reason, could something not normally have happened.

The safety zone was suddenly destroyed, and dragons so powerful that they could see no example.

As the top adventurers defeated the dragon, I confronted the dragon with a sword borrowed from the fallen adventurer.

"A carefully crafted weapon... I guess it was"

I look at the weapon in my hand and squeal like that.

The form is delicate and at first glance I can tell it was seriously hit by a serious blacksmith.

But... that's the past.

This sword was already broken before I used it.

For the sword, the core part of life was bent.

Now I can't use it as a decent sword anymore.

Perhaps when I took this dragon's attack, I couldn't stand the power.

Well, it doesn't make a lot of difference considering what I'm going to do now that the sword is going to be safe.

With that in mind, I scratch my palm with a sword blade and activate the alchemy.

(Mixed)

Blood overflowing from the palm of his hand is sucked into the sword.

Just because you mixed blood doesn't mean your sword gets stronger.

My aim this time is somewhere different.

(Move)

Next, I changed the shape of my sword with alchemy.

Originally, the alchemy used to make the sword is to the extent used to finish it, and the basic part is Theory, which uses blacksmith tools to process it.

Since significant processing by alchemy imposes an impossible load on the structure of the metal, this method would compromise the strength.

(Move)

But I'll do more processing.

Now, the blade was thinned to the extreme.

This is also a process that only strives for sharpness at the expense of strength.

load of alchemy and a thinner blade.

This sword will undoubtedly become useless in one slash.

But once it's slashed, that's enough.

"You kept me waiting."

That's how I squeal and watch the dragon move.

Nothing. The dragon wasn't waiting.

He was trying to restore the magic consumptions he had just unleashed and fight me in an all-out manner.

"Hey, aren't you coming?

I ask the dragon that, but the dragon doesn't move.

But... this doesn't mean you're unwilling to fight me.

An organism is something that creates a gap when it moves.

It would mean I wouldn't move ahead to attack for that gap.

Highly intelligent demons sometimes behave.

And I was trying to do the same thing.

At the time the dragon moved, I was going to make that gap.

But that doesn't seem to work either.

The dragon is definitely insulting to me, but I'm not alarmed.

A true strong man, even if he's weak, is something that he takes seriously.

... As far as I'm concerned, I'd better be a little more alert.

(I have no choice. Let me go from here)

I pack the distance in a slow motion to minimize the gap.

This movement may appear to have a large gap, but it is actually easier to react to enemy movements when it is moving slowly, with a small gap.

And when the distance between me and the dragon jammed into about two steps - the dragon moved.

The dragon did not have any structure or foretaste, and stuck his arm out.

There was no friendly preliminary motion that could be avoided by looking at it.

But I was reading it.

I immediately lean back and avoid the dragon's arm.

A sharp nail goes too far through where my neck was until 0.3 seconds ago.

I step into the dragon with my posture low.

"Ggoa!"

I wonder how confident the dragon was in the first blow.

I wave to rip off my other arm as I squeal confusion at you for not being able to defeat me.

There is no escape in this attack.

The head was blocked by dragon arms, and the dragon was cleverly using his long arm to completely block my escape route.

I see it, activate the alchemy.

(Burn)

Burning, of course, is your own blood.

The 'carrying energy' nature of the blood is instantaneously released, and in exchange for some of the blood I gain explosive acceleration.

Accelerating to speeds beyond humans in an instant, I dived into a slight gap between the dragon's arms and body.

From here, you can aim directly at the dragon's belly.

(Burn)

'Burning Blood' again.

Now activate against the arm with the sword.

The sword, rebuilt just for sharpness, accelerated explosively, eating through hard armor and piercing it into the belly of the dragon.