Summoned from another world, the hero is Ultraman Zeta.

What was once a beautiful place with clear waters and lush mountains has become muddy and treacherous after the battle between monsters and Ultra Warriors. Fish heads are constantly being knocked off, and the mud has been stained by digging. The shockwaves from the clash of light and mud cannons have made it difficult for the river to calm down for a long time.

Another round of heavy hammer blows struck the ground, and several mud cannons were launched at Haruki. After experiencing this level of attack once, it was difficult to damage Haruki. The mud cannons that missed hit the opposite mountain wall, causing rocks on the mountain to fall continuously and stirring up one big splash after another.

"We can't let these guys keep attacking like this. If they continue to act recklessly, the consequences will be serious."

A barrier was erected in front of him, and through the reflection of the barrier, Yao Hui looked at the mud and cracks on the mountain wall behind him with a hint of worry.

"But what should we do, Haruki? If our beam attacks miss, they might damage the surrounding environment, and close combat is risky."

Zeta and Haruki pondered together, realizing that it was difficult to find a solution that satisfied both sides in their current predicament.

After a loud bang, AlphaShaun kicked a group of fish minions with his flames and broke through the encirclement. The shockwave he released repelled the giant fish minions, allowing AlphaShaun to reunite with Haruki.

Fish heads, scattered all over the ground, struggled and thrashed in the mud. AlphaShaun, also injured and covered in mud, gasped for breath as he reached Yaohui's side.

"You were too focused on attacking Sean, and you're exhausting your stamina too quickly." Yao Hui used the Courage Crystal to help Alpha Sean recover from his injuries, but the excessive stamina could only be restored by Sean on his own.

"But I really have no other way but to attack. These fish-headed monsters seem endless no matter how much we fight them. They're like ants in an anthill. We can drive them away once, but two more groups will come."

"Ants? Hmm... If there are ants, it means there's an anthill... Could it be that these fish also have their own nests?"

AlphaShawn's complaints suddenly reminded Haruki of something, and then a wave of small fish emerged from the water behind him on the shore, a scene that made Haruki imagine ants leaving their nest.

"Hey, Ah Jiu, can you hear me? Don't fish have the habit of building nests? I suspect there's a monster's nest under the water?"

"Wait, Yaohui, I'll check right away." When Ajiu heard that it was Yaohui who was contacting her, she immediately stopped what she was doing. She and the captain had just collected the tools when the fish were scattered, which would reduce the losses and prevent the monsters from using the tools to attack Yaohui and the others again.

"It is indeed recorded in the Monster Encyclopedia, Haruki, but the burrows of the fish are all built underwater. Are you sure you want to risk going into the water? These fish are much more ferocious underwater than on land."

“We have a saying there, ‘Nothing ventured, nothing gained.’ To completely eliminate danger, sometimes you have to face it head-on. Please remind Sean that when he’s really hesitant to go all out, he should use a barrier to separate the combat area from the surrounding environment. Within the barrier’s protection, he can unleash his full firepower.”

Having received confirmation from his companions, Yao Hui immediately broke through the encirclement of the fish and plunged underwater. At the same time, he asked A Jiu to relay a message to the aggressive Sean, which was Yao Hui's little suggestion.

After diving dozens of meters underwater, the bright sunlight in the mountains and waters completely disappeared, replaced by the darkness and silence of the environment. Haruki activated Ultraman's dark vision ability, and his eyes shone like crystal lamps as he explored the mystery beneath the river.

The ability to fly also applies to water currents, but because of the significant difference between air pressure and water pressure, Zeta can only move at low speeds underwater and cannot achieve the supersonic flight it can in the air.

Haruki consciously avoided the schools of fish rushing to the surface, wanting only to find a hiding place to observe their origin. Upon landing on the riverbed, Haruki found the wreckage of a sunken ship and wanted to conceal himself there to properly examine the underwater environment.

A large crab suddenly rushed out from under the sunken ship, startling both Yaohui and the crab. However, as soon as it emerged, the crab took off running. When Yaohui turned around in confusion, he found a large group of fish with their mouths wide open, ready to bite him.

AlphaShaun punched away the fish head that was trying to bite him, and watched the giant fish monster's muddy body dissipate while panting heavily. He had lost count of how many fish heads he had knocked down. Perhaps after today, he wouldn't want to eat fish for a long time.

AlphaShaun had already defeated all the fish monsters on the shore, but more and more fish heads kept emerging from the shore, absorbing the mud on the ground to assemble their bodies and rush towards him.

The problem isn't dealing with these monsters, but rather that Sean has very little energy left. He wants to fight with all his might, just like Haruki expected, but his own limbs are already complaining to him.

"Damn it, when will this fight ever end? This mud has been used so many times already! These fish-headed monsters don't seem to mind using it, but why can't I use it myself?"

“I’m using this mud, and it seems like I can actually use it.”

After the initial surge of energy subsided, Sean's blood pressure calmed down and he gradually regained his senses. Facing a large wave of fish-like monsters surrounding him, Alpha Sean no longer clenched his fists as before. Instead, he opened his hands and activated the Earth Blessing Magic, combining it with the Ultra energy of the Light Magic Stone to transform the mud on the ground into something he could use.

After a burst of bright light, the fanged, biting fish monster was punched away, and then more fish monsters were punched away by more punches. A large number of mud-shaped AlphaShann appeared here, forming a two-way confrontation with the gathered fish-headed monsters.

"Aha, all troops, attack!!!"

AlphaShaun's numerous mud clones rushed forward, creating a great spectacle, but only Shaun was shouting; the other mud figures didn't even open their mouths.

"Whoosh! Dora!" "Dora!!!"

The fish-headed monsters don't care how many enemies there are or whether the invaders are ships or people. As long as they give an order, they will rush forward unconditionally to carry out the only command called destruction.

A water explosion erupted beneath the surface, and a large group of fish-shaped monsters gathered together, forming a dark, menacing mass. Each of them had a ferocious expression, as if they wanted to tear any creature that approached them to pieces, should they be able to break free of the barrier fish cage.

"It's actually easier for me to attack them all at once. The fish monsters here, plus the ones Sean is dealing with, are all the fighting force of the fish monsters. Let me see where these fish monsters' lair is."

"Oh, right, Belial-san, these fish monsters are all yours to watch over for now. Just so you know, you can't eat them."

"Hmph, ridiculous! Who wants to eat these stinking things? I know what's good for me."

After giving some instructions to Belial Twilight, Haruki set off to find the target. Faced with the large-scale invasion of the fish, Belial Twilight's Dessim Fangs were enough to swallow them whole, making it much easier to lock them up afterwards.

Looking at these ferocious monsters, whose bodies consisted of nothing but heads and tails, Belial Twilight found them comical. A group of fish heads gathered around and roared at Belial Twilight outside the barrier. Belial Twilight's slight intimidation scared them into scattering in all directions. After some teasing, Belial Twilight burst into laughter.

The noise on the shore had stopped, ending amidst the piles of fish heads and mud. Sean, exhausted from deactivating his transformation, collapsed to the ground. The captain handed Sean a water bottle to take care of him, while Ah Jiu picked up a piece of fish and examined it closely, his face full of curiosity.

Ripples spread across the water's surface, and a huge dark shadow emerged from beneath the water. A small underwater mound, a combination of rock fragments and bluish mud, rose to the surface, revealing crystalline fish eggs inside under the sunlight.

A light flashed beneath the river, and the gigantic Zeta emerged from the surface, raising its head to let the river water slide off its body. Ultraman's skin became even more radiant under the dual cleansing of sunlight and water.

Holding the fish nest in one hand and the fish swarm barrier in the other, Zeta used his telekinesis to trap the fish swarms on the shore inside the barrier. All that was left to do was find a more suitable home for these river creatures.