The morning after the barbecue.

I was walking alone on the beach.

"I woke up too early. ...... I have some time before everyone else wakes up. ...... I'm bored..."

That's when it happened.

"Hmm? What the ...... is someone down?"

There was a figure on the beach.

As I approached, I saw it was a girl.

"The lower half of her body is a fish ...... [Siren]?"

A subspecies that lives in the sea.

The upper body is human and the lower body is fish. They live in the deep sea.

"Is there something wrong with them appearing on land ......?"

"Uh-uh. ......"

A mermaid wakes up.

"If I don't get ...... home soon, my ...... home will be ...... gone."

After saying this, the mermaid fainted.

Looking closely, she had cuts all over.

"You're hurt. Here."

When healed with healing magic, the mermaid begins to sleep peacefully.

"I can't leave you here like this, so I'll send you back to ....... Back home."

He tries to use transference, but he doesn't know where his home is, so he can't.

"We'll just follow the scent of her blood."

I take the mermaid on my back and start [walking] toward the sea.

I put up a barrier around me.

I head for the bottom of the sea, using gravity magic to keep my body from floating.

After a while.

I reach the bottom of the sea.

I strengthen my senses with my aura, and walk through the pitch-dark depths of the sea without a care in the world.

Applying wind magic and breathing in the sea, I reach the girl's hometown.

"Wow, it's a magnificent town. A mermaid town."

There was a very beautiful city there, made of reefs and corals.

"Hmm? Someone's here: ...... Is that a fish man (Sahagin)?"

They are giant fish monsters that walk on two legs.

"I'm pretty sure they didn't used to get along. ...... Why are there fish people in a city of mermaids?"

When the fisherman notices me, he yelps! And his eyes.

<<< Nah! Why are humans in these deep waters! How did you get here! >>

"Nothing, nothing, just walk normally."

>

The demon king in his body murmurs happily.

"I've come to deliver the mermaid girl. Do you know where her parents are?"

>

It seems that the girl on her back is the daughter of the Umigami family.

"Would you take me to this Umigami-san, if you don't mind?"

<>

The fisherman tries to poke me with a harpoon in his hand.

"Watch out!"

Bosh. ......!

Before the harpoon could reach my body, it disappeared.

<>

The arm holding the harpoon and the body of the fisherman disappeared.

"Oh, I was trying to warn you about the wind barrier, it's dangerous to touch it."

I use recovery magic [Raise Dead].

<>

"Yeah, I magically revived you, didn't I? I can revive you within a few seconds with no risk."

<>

The fishermen are fleeing back at super-speed.

"Oh, hey, you're not with him. He's gone. ......"

"Well, if he's in this mermaid town, then he's one of us, right? I shouldn't kill him."

The fisherman who had escaped came back with a large number of his friends.

>

"What, we just came to drop off our friends?"

Then the fishermen's faces turned even paler.

>

<>

The fishermen attacked me at once.

They throw harpoons, spit acidic foam rays, and send high-pressure streams of water at me.

Bash......!

But all of them are blocked by my wind ward.

"Hey, hey, hey, don't make too much noise, okay?"

Still, the mermaid girl is sleeping on his back.

>

<<>

"What, I'm just an adventurer?"

>

<>

The fisherman is flying away.

Meanwhile, the attacks continued.

"Hey, so Mr. Sea Gull has something to do at home. Why don't you listen to me?

<>

Then, one of the fishermen holds up a treasure ball in his hand.

>

>

Boom! ......! And the fisherman throws a jewel.

It is not an attack, so it slips through the wards.

"Yes!"

Paku-paku.

>

"Well, it doesn't taste very good."

>

"Yeah, because I told you to eat it."

Shivering fishermen.

>

"Kepu. "Hmm, is this too carbonated?"

<>

"What, was this a bomb?"

<

The Demon King laughs in amusement.

"I'm sorry I ate your weapon without your permission. Here, I'll give it back to you.

I'll use my creation magic to make one just like it.

>

<>

That's when it happened.

<>

<<<<<< [Fish and Sea King] Sir! >>>>>>

A large fishman came from the back.

He wears a crown made of coral on his head.

>

The Fish King or whatever he's called, is looking down on me.

<>

"Whatever, can you take me to someone called Mr. Sea Gull as soon as possible?"

<>

The Fish King waves his arm at me.

But he's blocked by my wards and bounced away!

Bakiiiiiiiiiiin!

>

"What, this ward can't be broken by a high level demi-god?"

<<< Koo! In that case, my secret weapon! Take that, Kaioken! >>

Both arms of the Fish King rotate at high speed.

It becomes a whirlpool, chipping away at the buildings and ground around it.

With a mighty thrust, both of Uokai-Oh's fists come toward me.

I create a sword and swing it lightly with one hand.

"Tei!"

Zooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo!

>

There will be no more water around.

We can see the sky now.

"If we make a whirlpool, it will destroy all the beautiful buildings.

Because without water, there would be no whirlpools.

>

<<<<<>>>>>

It's like the Fish Sea King, literally running away with his tail between his legs.

"Well ...... and . You guys."

<<<<<>>>>>

"He's gone to ...... this girl's house. Oh, my God, they're so noisy."

The fishermen are out of town, just in time.

"Uh-uh. ......"

The mermaid on my back woke up.

"Oh, you're awake!"

"This is ...... and yes! Dear human! Please do me a favor!"

What?

"In fact, our mermaid city is being taken over by fishmen! My father, the Sea God, has been captured and is on the verge of destruction!"

"Heh."

"So come with me and save the city ......, eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee!"

The mermaid is astonished at the sight before her.

"There are no fishermen ......! Every last one of them! Where, where are you going ......?"

"What, he just left?"

"Oh, no! The Fish King!

He got away too.

The mermaid looks up at me with a shocked expression.

"Who are you ......?"

I look at her and answer.

"Well, I'm only human."