Japan is an island nation and Tokyo is a coastal city, so it is natural that typhoons and torrential rains cannot be avoided, and whenever this happens, the water level of many large rivers such as the Tone River, Edo River, and Arakawa River in the surrounding area skyrockets, inundating the surrounding residential areas, causing catastrophic consequences, and there is no precedent in history.

Therefore, the government has invested a lot of money and manpower, and even set up a special sewerage bureau to operate, build, and maintain the urban drainage system in the Tokyo metropolitan area.

Tokyo's sewer system can be roughly divided into the "inner ring" and the "outer ring", of which the inner ring covers several prosperous areas such as Bunkyo, Shibuya, Chiyoda, Minato-ku, and Chuo-ku, while the outer ring is a circle around the "suburbs" of Tokyo, and even a shot can reach Saitama Prefecture north of Tokyo.

It took nearly 15 years to complete the drainage system in the Tokyo area, with a total investment of more than 240 billion yen, with an average inner diameter of about 10 meters, many deep and large storage pits, and even a man-made underground reservoir to prevent heavy rains from hitting and having nowhere to drain.

Rainwater in Tokyo can be drained through two channels: rainwater from areas close to river canals flows directly into rainwater storage and drainage pipes through drainage pipes in various buildings and roadside outlets, and finally discharges into the sea through large tributaries.

The drainage pipe that the Narumi brothers and sisters walked into is a flood channel for emergency use, which is usually closed, and only in this kind of rainstorm weather can someone open it for use.

In order to ensure the smooth flow of the drain, the Tokyo Sewer Bureau stipulates that some toilet garbage that does not dissolve in water is not allowed to be discharged directly into the sewer, but must be disposed of through the garbage sorting system first, so there is no amazing stench or unsightly stains in the pipe, only the raging rain is coming, and it is very well-behaved on both sides of the road in front of the two.

After walking for a long time, they even went down a shaft tens of meters deep, and as the surrounding environment became darker and darker, and the water became deeper and deeper, they were getting farther and farther away from the ground.

The two of them walked leisurely, as if they were carrying some treasure like water droplets, and neither the rain nor the stagnant water could wet them in the slightest, but when they came to a fork, Narumi Shinna, who was leading the way in front, suddenly paused.

Narumi Shingo also stopped, holding the hilt of the knife at his waist, his eyes narrowly scanned the surroundings, frowned and said softly, "What's wrong?" ”

Narumi Shinna reached out and took off a cartoon goldfish-shaped hairpin pinned to his hair at some point, held it with both hands, and muttered, "Something is wrong, the sea tiger pill said it smelled... Smelled a lot of reptiles. ”

"There's something else... The smell of blood, the smell of the sea breeze, the smell of burnt..."

"Wait, Sea Tiger Pill feels the [Divinity]!"

"We've come to the right place!"

"I'm afraid this is a place for those worshippers to worship the gods, that is...[altar]!"

Shingo Narumi nodded disapprovingly.

"Well, I expected it a long time ago, but it's a good idea to put the nest in this sewer, but the rats in the gutter have been in the gutter for a long time, and I'm afraid that these worshiped gods will also become rats crossing the street in a panic, and they will be vulnerable..."

"There are a lot of reptiles, and it's all here, and there must be more than one secret ritual guardian."

"Keep going, don't worry, if it's only the strength level of the woman I saw that day, I'll kill as many as I want."

"Even if the Lord of Arakawa is no longer in the throne... It's not something that can be humiliated by a third-rate product! ”

Narumi Shinna's expression became more confused.

"I'm not afraid, you don't have to tell me this!"

"It's just... There is a fork in the road ahead. ”

"The gathering place of those reptiles, and the place where the smell of divinity leaks, is not a place."

"Hey, how do you choose?"

Hearing this, Narumi Shingo was stunned, and then narrowed his eyes.

"Those eagle-like secret rituals are not to be feared, where there is a divinity leak, there must be a channel to communicate with the gods, and that is probably the place where they sacrifice."

"If I'm not mistaken... Is it there? ”

Narumi Shingo pointed casually, in exchange for the big Lori next to him nodded again and again.

"That's right! That's right, how do you know? ”

“...”

"And so it was..."

"From the very beginning, I felt that at the end of this road, something seemed to be calling to me, which gave me a very familiar feeling..."

"When I traveled abroad, defeated the monsters, gods, and heroes, I returned to the Arakawa River again, and this land and water gave me this sense of calling."

"There must be something there that I'm familiar with."

“...”

"Let's go, go take a look, and if it's ours, get it back."

Big Lori Shina pursed her lips and smiled, and asked meaningfully, "Then what if it's not ours?" ”

Shingo Narumi raised his head slightly, and the smile on his face was a matter of course.

"So... Grab it. ”

Surrounded by a rusty jungle of steel, the cold barbed wire and steel skeleton have been rusted by rainwater, and unlike the outlet, there is not as much water in the sewers deep underground.

After all, the pressure of drainage is completely borne by the pipes that extend in all directions, and a week's rain is not enough to fill this "underground palace" in Tokyo, which has been built with huge investment.

In such a deep, desolate corner of the sewer, where no one should have cared about it, there was a suspicious creature crawling.

They are "creatures" because their bodies are slightly swaying and have distinct life features, and they are called "they" because they are not "human" in terms of their smooth skin with sticky mucus, their pimple sarcoma heads, their webbed limbs, and the heads of the fish creatures.

It's more appropriate to call them "Fishmen".

Suddenly, the "fish-men" paused, and they turned around, revealing a hideous face covered in blood, like a fish, like a frog, and with a hint of human features.

They still had flesh in their mouths, and by the dim glow of the fluorescent lights on the walls, they could see a mutilated human corpse on the ground, blurred by the flesh that had been eaten.

What disturbed them from eating was the sudden sound of footsteps.

One big and one small, one before and one behind.

A young man wearing a kendo uniform and holding a sword, and a big Lori with a cute hairpin, are close to this bloody scene.

"Oh, I see, it's them."

"I also cut such a thing a few days ago, they are not afraid of swords, they are reborn in water, and they are a little difficult."

"But... It seems that supernatural forces are capable of delivering crushing blows to them. ”

"I'll cut them down, and you can finish it for me."

Narumi Shingo whispered a few words, moved his neck, grinned, showed some fine sharp teeth, and his eyes were red - he didn't have to look much better and kinder.

In the next second, the golden sword light burst out with a beautiful sword sound, in this dim sewer, like golden lightning, with the momentum of thunder, the moment when a few "fish people" crawling on the ground did not react, the famous knife "Hai Guozuo" had already kissed the neck.

After taking seven steps, the sword changed four flashes, and the extremely exquisite control power made Narumi Shingo not waste a single bit of strength, and he didn't even use half a point of power beyond the limit of human beings, and the four fish-man heads with bulging eyeballs fell to the ground.

Then, Narumi Shinna and her brother cooperated very well and cheered.

"Go ahead! Sea Tiger Maru! It's an add-on! ”

The hairpin on her head fell with the sound of words, and her body kept growing in mid-air, and a fish leap drew an irregular curve, and the goldfish hairpin turned into a behemoth that almost filled the entire pipe.

Extremely sharp teeth, dark yellow cold eyes, sharp fins like knives and axes, and that bloody mouth to the limit.

Like a begging puppy, "Sea Tiger Pill" swallowed the four fish-man heads into his stomach without hesitation, and some scary goldfish faces could be seen to be a little satisfied.

Eaten by the Sea Tiger Pill, it is impossible for these fish people to be reborn again, and their bodies that have lost their heads quickly melt and turn into a viscous liquid, scattered in the water.

Immediately afterwards, the Sea Tiger Pill changed its body again, but instead of turning into a hairpin, its body shrank countless times, swimming happily in the stagnant water below, like an old man who strolls around to eat after a meal.

Narumi Shinna frowned and reprimanded, "The water here is so dirty, Sea Tiger Pill!" If you don't wash it, you won't be allowed to turn it into a hairpin! ”

The small goldfish is a little cute compared to the giant goldfish, and the sea tiger pill shook his head and made a baby-like crying sound, with a flattering appearance, which made Narumi Shinna giggle too.

Shingo Narumi didn't smile.

He glanced at the mutilated human bodies scattered around, and there were as many as four or five of them with flesh and blood still hanging from the bones.

The rest of the white bones, precipitated in the dirty sewage, seemed to be dead faces, and the hollow eye sockets in the skulls looked through the water, looking up, but not the sky.

Fifty meters above the ground in Tokyo, I don't know how many bones of people who died in vain were buried.

These fish-like "deep divers" seem to have an extraordinary love for human flesh and blood.

And, according to what Shingo Narumi heard from Kiyoshi Uesugi, it seems that they also worship their gods with human flesh and organs.

With his eyes closed, Shingo Narumi could almost imagine that in the middle of the night, these fish-man monsters went out to hunt for food, targeted the lone humans, culled them, and dragged them deep into the sewers, where these "prey" either became sacrifices to the gods or became bait for their kind.

This kind of thing must have happened countless times.

“...”

In the blood-red eyes, the color of blood did not subside.

Narumi Shingo's originally handsome face has been full of murderous intentions, and no matter how you look at it, this expression is "irritable" to the extreme.

He's angry.

"This is Arakawa..."

"These are the people of Arakawa... Their ancestors once believed in the lord of the Arakawa who could bring them good weather and good harvest! ”

"You foolish bastards... How dare you do such a thing in my territory, in my god's name?!! ”

"Damn! Damn it! ”

"You... And the gods behind you! ”

"Don't even think about living!"

The sound of self-talk grew louder and louder, and at last it shook the round walls of the sewer and even drowned out the sound of the murmuring water.

Seeing this, Narumi Shinna just wanted to go up to comfort his cheap brother, but saw him suddenly turn his head and look into the depths of the tunnel.

The eyes that burned with anger were infected with a hint of a crazy smile.

"Ah, there's another one."

"Look at the way you look, it doesn't seem like these idiots?"

"It doesn't matter... Cut it first, you're talking about! ”

The environment here is too dim, but Narumi Shingo's bloody eyes seem to be able to see in the dark, staring at another figure in the depths of the tunnel.

If I had to say it, it was a "fishman", but his head was very anthropomorphic, and only the huge, outrageously large eyeballs that protruded from his sockets made him look a little like these deep divers.

He was dressed in somewhat shabby clothes, his body was covered with fine scales, his hands and feet were still webbed, and he was holding a cane in one hand and a piece of flesh dripping with blood in the other, and he seemed to be feasting on it.

It's just that this eating party was disrupted by uninvited guests.

Narumi Shingo was furious, where would he talk nonsense, his body was like a wisp of light smoke, and the blade of ten thousand jun was in front of the deep diver's eyes in an instant.

I didn't think about it, the indomitable blade, but suddenly stopped, in front of Narumi Shingo, a faint blue film appeared, a little reluctantly, but still firmly stopped his knife momentum.

The highly humane deep diver grinned silently, revealing a mouthful of uneven, bloodstained sharp teeth, and the crutches in his hand slammed the ground and splashed countless waters.

And these splashes did not fly away, but rose into the air, with a chilling sound of breaking the air, like a bow and arrow, shooting at the vital point of Narumi Shingo's body.

If Uesugi Kiyoshi were here, he might complain - finally met an enemy who looks and attacks like a "mage", this deep diver is a bit like a "spellcaster" in some Western fantasy settings.

He is physically weak, but he has the ability to cast "spells".

The light blue film, as well as the powerful water arrows, if you change to a fledgling transcendent, you will definitely overturn on the spot, and if you have no actual combat experience, you will only be smashed by this kind of surprise attack.

Does Shingo Narumi have any combat experience?

Scold...

He didn't look flustered at all, but he also showed a hideous smile, glanced at the ugly-looking deep diver, and spat out something that he didn't understand.

"You're using ...[Current] against me?"

"Huh... Hahaha! ”

He shuddered with laughter and waved his hand lightly.

"Do you know what the Lord of Arakawa is?"

"Conquer the sea, make the waves, the water demon of the world, who else is me?!"

There was a roar, and suddenly, time seemed to freeze in the entire pipe.

All the streams of water hung upside down in the air, drop by drop, wisp by wisp, and gathered into a wave with a strange trajectory that could not hold the board of Newton's coffin.

Yes, in this sewer, fifty meters above the ground, a huge wave appeared out of thin air.

The waves rolled and rushed over, skillfully avoiding the Narumi brothers and sisters, and unceremoniously swept those light blue films, water arrows, together, and slapped the deep diver one by one.

After about three or four seconds, Shinogo Narumi exhaled.

The waves dispersed and turned into currents that spread again in every corner of the pipe.

But the fish man in front of him has disappeared without a trace.

He was smashed by a wave containing the demonic power of the Lord of the Arakawa, and he didn't even explain half of his last words, and his soul flew away and the world evaporated.

In the same way, this wave washes the entire channel.

Narumi Shingo looked at the depths of the passage with burning eyes, and the graffiti-like pattern on a closed iron door in the distance, his face gradually changed.

“...”

"Pillar of fire, entwined with electric light, counting eight..."

"This emblem..."

"Rayfa?"

"Fire Thor?"