Samurai from Another world

"How'd a samurai got into our world?"

"We're not sure about this dad, mom."

"But we can't just kill him can we?"

"You're right."

"But, darling what should we do to him?"

"What if we adopt him?"

"What do you think?"

"Are you crazy?!"

"He tried to kill me and your own son."

"But where will he live?"

"He's too strong, mom."

"But I think it's fine."

"I can handle him after all."

"But he's got an S.Is he a chosen too?"

"We never know"

This kid is not normal. I don't think he's chosen. Because if he is, then he wouldn't be here.

Genji then started opening his eyes slowly.

"What!?"

"Where am I?"

"Where had you taken me into?!"

He then reached for his waist.

"Where's my katana?"

"We kept it."

"We won't know what you will do with it."

"I don't want my house to be destroyed you know?"

"I. Don't. Care."

Voice as cold as ice

Suddenly.

Horned grow on his head. And later on, his whole body changed.

"A demon?"

"No dad."

"But it's clear it."

"I'll take care of him once more."

"Not this time son. It's clearly a suicide!"

"Just let me do it dad."

I then suddenly grabbed him and pin him.

[Teleportation]

RAHHHH!!!!!!

"Now. Let's start."

[Mirror World]

"Now nobody will get hurt beside us"

Red eyes, sharp horn, adding his razor-sharp tail.And blazing wings.

Certainly.

A demonic curse.

He then produced a sword from his own hands.

"Worse of the worse"

Demons have really powerful flesh manipulation and regenerative abilities as they can produce anything with their flesh.

And the only way of killing them is by severing their neck.

Demonic curses can only be applied to the babies. Boosting their abilities past the limits.

And that's how Genji killed his parents as a kid.

"Kill."

"Kill!"

"Kill!!"

"Kill!!!"

He then leaped forward as if pounding me.

[Force Field]

He then bounced back a few meters.

I had to stop you without killing you.

[Bind]

[Air Hammer]!

He was then gotten on the ground.

He then lifted the spell.

"I'm not gonna waste time"

Thanks to my training even before I got to the academy. I'm really super strong!

"Die!!"

Genji shouted with a voice of hatred towards me.

"I don't want to hurt you."

[Paralyze]

He resisted it.

Roaaarrrr!!!!!!

He then closed our gaps at an unimaginable speed that he left an afterimage.

Swung his sword horizontally at a great force.

So strong that winds scattered.

He then continually done it while I had to cast a few of buffing spells just to be able to keep up with his speed.

[Swift Movement]

[Wind Walker]

[Thought acceleration]

Following up with constant use of [Time Stop]

and [Teleportation].

Since magic is infinite and it's just all around me. Since I'm just harnessing it, I can keep this up.

But I'm tiring.

[Black Hole]!

[Multi Electro Sphere]!

[Sleeping Gas]!

[Paralyze Shock]!

I had to throw every restraining spells that I know.

After doing so he finally got back down.

He then reverted to his human form.

He got burns and bruises.

After that, I finally bring him back home.

I didn't heal him after that because he might suddenly wake up and fight me again.

"I'm back."

Sheesh.I'm just 9-year-old boy right now and I'm doing this kind of fights.Like.Seriously?

I put him on a [Transparent Prison]. Which is good for observing captives.

And Further, stack it into 10 times of it But living him a movable space. Of course it's inside our living room.

It's dawn and it's dinner time.

"What shall we do with him?"

"Why don't we make him our own son?"

"Eh?.Seriously mom?"

"You don't like it?"

"I, it's not like that, hehe."

"Look, he's waking up honey."

"Why don't you give him some of these sons?"

"Sure."

After taking the food my mom gave me.

I then put it in the prison beside him

"Here, eat this."

Like a wild animal who restrained his prey.

He then pounded into the food in front of him.

"Hey slowly"

While being a bit shy he asked.

"One more."

"Yup!"

After all of us had our fill we then got into our rooms.

I moved him with me.

I cloned my bed and put him there.

So that's how I got a brother that is a samurai from another world.