Crossover Anime: How Did I Become Iruma-kun?

I never imagined that this monstrous thing was Leviathan.

This had absolutely nothing to do with the Leviathan he remembered; they were not even in the same category of understanding.

Mephisto continued, "However, this demon god should have died in the war of demon gods back then."

"I simply cannot imagine how it survived, or rather, how it was resurrected."

If we had to find a demon to answer this question, then it would definitely be Ms. Levy, one of the three heroes.

She must know many of the hidden histories and records of the sea creatures.

Iruma looked at the giant water serpent Leviathan: "So, this guy might not be alive, he might just be a corpse, right?"

"You could say that, Your Majesty."

"Should we inform the three heroes and the thirteen champions now?"

Iruma immediately rejected the question: "No need, one person is enough for me here."

"And it wouldn't matter if we summoned more demons; they simply don't have the ability to solve the disaster in front of them."

Mephistopheles nodded: "That makes sense. So what should we do now, Your Majesty?"

Faced with Iruma's confident demeanor, Mephisto had a feeling that a good show was about to unfold.

After all, this is a monster capable of fighting against demons.

If they unleash their full power, they might be able to slay Leviathan once again.

"You are responsible for protecting the safety of the residents below. Leave the Leviathan to me."

After Iruma finished speaking, he transformed into lightning and disappeared.

"Roar!!!"

Leviathan roared as it saw Iruma return, and the entire ocean trembled.

Countless sea monsters burst forth from the sea, charging toward the black lightning.

"Shut up!" Iruma clenched his fist as he charged forward, unleashing a powerful punch with his right fist, which was wrapped in Armament Haki.

"Thunder Gossip!!"

The Thunderous Eight Trigrams, unleashed at full power, possessed astonishing might, and the terrifying black and red lightning instantly tore these sea monsters to shreds.

The massive ocean was cleaved open by this punch, stretching for tens of thousands of meters, and the dark clouds in the sky were forcibly dispersed.

This punch seemed to be capable of destroying the heavens and the earth, sweeping across all directions with boundless terrifying pressure.

Even Leviathan was stunned and paused when he saw the monstrous strength of the demon below.

Clearly, they hadn't expected their opponent to unleash such terrifying power.

However, Leviathan was only slightly shocked before continuing to unleash its skills on Iruma.

It devoured the surrounding magical elements like a cow drinking water, instantly draining away the originally abundant magical energy.

In an instant, the water elements in the sky and the earth condensed, and as if they had their own consciousness, they transformed into various sea monsters and weapons.

Iruma stood in mid-air, gazing at the monsters above for a long time: "They look somewhat familiar."

It must be said that these monsters and scenes in front of me seem to have awakened some kind of memory.

It's a very familiar memory, as if I had personally experienced it all.

"Roar!!"

With a roar from Leviathan, countless waves surged towards Iruma.

These monsters formed from seawater were all as powerful as sixth-tier demons, and they charged madly towards Iruma.

Mephistopheles stared in astonishment at the crashing waves in the distance.

"They actually used their physical bodies to resist the attack of the demon god?!"

This absurd and impossible thing is now happening right before his eyes.

It must be said that Iruma truly is a monster capable of fighting against demons.

Or is he actually one of the demon gods?

After all, demons are no match for demon gods, and the original demon god constantly blesses these demons.

Today, all those powerful families and lineages have inherited their power through the blessing of the Demon God.

Iruma, who was within the attack range, was left to be attacked by the opponent.

These attacks, which seemed so powerful and terrifying, were like raindrops pattering on his body when they came to him.

It won't have any impact whatsoever.

As the attack by the demon Leviathan ended, Iruma, who had been surrounded by countless waves, finally revealed himself.

When Leviathan saw Iruma standing unharmed in the void, his body stiffened once again.

It felt as if Iruma was being looked at with the eyes of someone who had seen a ghost.

"Don't be shocked yet. Now that you've made your move, it's my turn!"

In an instant, Iruma appeared in front of Leviathan, raised his hands to grab the void in the upper right corner, and then pulled it down sharply.

"Boom!!!"

In an instant, the entire sea surface spun around, and the ocean was cut and split into countless rings, which were upside down and out of place.

At first glance, it looks as if the entire ocean has been overturned.

As a terrifying move that Whitebeard used at the Marine base, Iruma had long wanted to try it out.

However, there was nowhere else for him to have fun like that.

Now that Leviathan has appeared, it's the perfect opportunity for him to have some fun.

"You lowly, despicable creature!!!"

Leviathan, shrouded in black mist, spoke in human language and roared angrily.

The roar plunged the island of Sirens into deathly silence.

All the demons stared in terror at the giant sea serpent in the distance.

The demons felt dizzy and disoriented.

"Then that monster spoke?!"

"real or fake?!"

"Was that really a monster?!"

Monsters cannot speak; this is an attempt known to all demons, just as animals cannot talk to humans.

The extremely unusual situation before them left all the demons dumbfounded.

The only one who wasn't surprised was Mephisto, since he knew the other party was the sea demon god Leviathan, so it was perfectly normal for him to be able to speak.

This only made him more confused.

According to Amway, Leviathan should have died in battle long ago, how could he still be alive?!

How did he escape that massive manhunt?

Moreover, almost all the demon gods united to attack him, a single demon god.

It disappeared for tens of millions of years after that, but unexpectedly it has emerged from the sea today.

Thinking of this, he picked up his phone and dialed Levy's number.

"Is that Lord Levi?"

"What's wrong with the King of Off-Bet?"

"I have something very important to report."

Chapter 400 Demon God Leviathan

On the other side, Leviathan twisted its body like a centipede soaring into the sky, opening its huge mouth to tear at Iruma.

That enormous mouth was as big as a mountain, blocking out the sky and making it impossible for the creature to hide.

Iruma narrowed his eyes slightly, and a spear that seemed to pierce the rainbow appeared in his hand as he charged straight forward.

"Crazy!!!"

Leviathan swallowed it whole, unleashing a frenzied attack from the water blades within its body.

"Shh!"

Iruma wielded his rainbow-piercing spear amidst the sea, creating a powerful whirlwind that canceled out the water blades.

As the amber light on the spear gradually increased, the spear shot out like a dragon, breaking through the sea.

The colossal Leviathan was cleaved in two by the power of the golden rock.

"It seems your strength as a demon god is only so-so."