That time I got reincarnated as a dragonewt Chapter 5 (Patreon)

Melt slash, combining with his Unique skill's one hit kill effect, he used his strongest attack for the second time in his life. The first time, it failed, he had to run with his tail between his legs. But he was confident that this time it won't fail. The monster has some kind of rapid regeneration. But no defence skill. That's why he put everything to one attack in the hopes of succeeding.
His remaining three comrades made an opening for him and he utilised it.

"Death slash !"

...
Metamorphosis II


Pain, that's the only thing I could feel. Maybe I should have ran away. I shouldn't have registed when my mom was trying to send me away with a teleportation. Then I could have lived. But now I am dying. Was I regretting my decision ?
Compared to the long life I lived in my past world, this short life was much better. I had a loving family. In my last life the only thing I was after was fame and power. I didn't know the pleasure of love. But that I knew it now in this life, I don't want to lose it. I don't want to lose my family. From what I know of the define act of spirit resurrection spell, from my mother's stories, the body of the victim must be intact along with the soul. A person's soul turns into magicules and mix back with nature eventually. If I could be quick enough then I might able to save my mother. My father is the strongest person in the world. He is the God. So he can bring himself back to Life whenever he wants.

That's why I stayed back. But I won't be able to get away from here with them living. I cannot over rule the barrier they have placed. And that's the barrier was the reason I had some hope of collecting her soul. So in order to save my mother, I had to kill these figures fast. So no matter how many options I get every time I would choose to stay even if it means death.
I knew my soul was dying. Getting destroyed by the spirit particles. I wish I could just evolve one last time.
'I am sorry Mr guide. I am sorry Milim. I promise to struggle till the very end.'
I didn't hear to the panicking Mr guide. I used the remaining of my strength to focus on metamorphosis. To adapt to this attack. Due to thought acceleration, the pain I was feeling lasted till the end. But I tried till the very end. I resisted my fate till the very end. And just when I was about to lose my consciousness I heard a voice, the same voice I heard when I was dying in my last life.

\ conditions have met.
The unique skill metamorphosis has evolved to ultimate skill evolution king Janus.\

At the last moment my body regenerated at a terrifying speed.

'Mr guide, let's do this together. Control the new skill with best of your ability. I want to kill them all.
And one thing more please make another barrier a strong one. '
/As you wish master/

...

Ra-van looked at the dead bodies of his comrades. Paul,Rudeus,Gin,Louis, Grigory all of them were dead.
He was alone now. Everyone who has followed him has died. And those sense died in the hands of a brat ! Ra-van himself was not in a good shape. Out of six of them, paul and Louise have died first. They sacrificed themselves in order to give him a chance to land a killing blow. And he did land a killing blow. But the monster came back to life from the verse of death.
After that despair followed. First Rudeus was killed by the monster. She picked up Paul's sword and copied his melt slash. No she did it without chanting. That took Grigory's life. He was unable to defend himself. The monster used their own movements against them. She used magic that has never been seen before.
"Black flash !" Took the life of Gin. He wasn't able to analyse it completely. But from what he could understand, she unleashed an unhealthy amount of her destructive powers in less than a second at one single point. The pressure itself was enough to break the barrier made by Gin.

...

'what is this feeling ?
Why am I feeling suddenly so sleepy ?
No I can't sleep right now.
I need to fight this dizziness.'
/Master,
Ultimate skill evolution king Janus has activated on it's own. I cannot control it. Your body is currently under the process of evolution to become a demon lord.
It has userped the authority of the voice of the world and started the evolution festival on its own.
Currently your resistance is increasing against the evolution induced slumber.
If you can hold for 45 seconds more, then you would get complete resistance towards the evolutionary slumber. /
'45 more minutes ha ?
Shit ! It seems he noticed !
Guide ! Help me ! Just focus on dodging ! I will focus on counterattack. I will give you the full control of my body. '
/As you wish master./
I remembered something called drunken fist from my previous life. It was in a movie I guess. The protagonist would use alcohols and create confusion towards his enemies by his uneven and unpredictable moves. I knew it was stupid but I tried it nonetheless.
But surprisingly I was able to evil almost all of his attacks for first thirty-one seconds. The last 9 seconds, I had to endure pain. I cancelled my pain nullification in order to stay awake.
One time he almost chopped of my head.
But finally I made it.
I felt my body changed. It grew to that of a teenager about 13-14 years old.
A blinding white light covered my body. The man stopped attacking for a moment.
But it's since that the voice of the world didn't like my forceful evolution. So it declared the entire world of my accession.

\Individual Makima Nava has successfully evolved to a demon lord.\

But I didn't care. I rushed towards the masked man.
I noticed, Mr guide's voice has became smoother as he informed me about the usable subskill abyss. I guessed that my evolution has increased my skill levels.
' I have to check them later with Mr guide. '
I thought to myself.
Lifting the blade above my head I covered it with abyss.
"Getsuga Tenshou."
The Last man crumbled away into nothingness.

...

AN: MC's previous world is a different versions of earth. It has same culture as the original earth like manga and anime. But it hasn't escaped the horrors of war. This was the info if you are thinking how does the MC knows about those moves.