Leviathan

In the middle of the ocean, a large boat stood unmoving as large shadows moved beneath and around the ship every now and then. On the deck of the ship, one man and three women stood the sails of the ship drooped as no wind was wound. Smiling Hiko felt his blood start to boil, " For the next two months we'll training here, as you master your nen you'll practice on the sea kings I bring you. "

Not waiting any longer Hiko dived into the ocean instantly attracting several Sea Kings looking at the five of them Hiko saw that all of them were at least twice the size of his ship but nowhere near the size of the Kraken. Summoning his ants Hiko told them to kill four of the five before restraining the last one, diving deeper into the sea Hiko used his En to search through the water searching for worthy prey. Eventually, Hiko found a large pufferfish like creature could shoot out its spikes with supersonic speeds before they regrew in a few seconds.

The fight wasn't too hard for him as his speed in water was uncontested just for the hell of it Hiko had grabbed one of the Sea Kings spikes before stabbing it through the eye and sending vibrations directly to its brain. After taking a few bites to replenish his Nen Hiko summoned a few more ants for them to start eating the sea king, searching again Hiko was looking for Sea Kings that would give him a challenge. When something started to swim towards him at rapid speeds Hiko grinned turning around to see what had challenged him, through the murky water an 80-meter long eel appeared with a brown body.

As Hiko observed the creature he saw tiny blue sparks come off the creature's body, coating his body in nen Hiko shot towards the eels. When he came within ten meters of the sea king the eel discharged his electricity into the water, if not for his nen Hiko would have been stunned for at least minutes as his muscles seized. Now with no form of defense, the eel was easily ripped apart by Hiko summoning another wave of ants Hiko searched for new prey.

By the first hour, Hiko had fought ten sea kings each stronger than the last. On the surface of the water, several smaller sea kings floating in the water all of them with large bruises on their bodies, Alvida, Nami, and Nojiko were panting. " Why did we ever follow him in here. " Alvida glared at Nojiko, " You should be glad that Master even let you on board. " Growling Nojiko raised her fist, " Oh that's how it is, let's go here and now. "

Alvida looked like she was about to accept when Nami bashed both of them on their heads, " Stop it the both of you, Alvida stopping being jealous if you're that mad Nojiko got it first just get Hiko to fuck you already. And you sister stop enabling her. " Both women groaned form the deck of the ship as their heads throbbed, Nami herself was irritated, ' I need to get Hiko alone it only been a day and I want him again. '

Before Nami could lose herself in her fantasy the water next to them exploded as a Lobster Sea King breached the water's surface, " Come on get up, this one will make a good meal. " Sighing when both women pretended to be knocked out Nami rubbed her temples, " The one who kills it will get an hour-long massage alone with Hiko. " Immediately Alvida and Nojiko shot to their feet their eyes locking on the lobster creature.

Back in the ocean, Hiko was swimming on the seafloor when something caught his attention, usually, when a sea king entered his En sphere they were filled with the intent to kill but this time the sea king had only one goal to protect something. Curiosity peaked Hiko swam towards the anomaly, swimming uninterrupted Hiko arrived at a large hole in the ground that could easily fit two Sea Kings side by side. Going into the hole Hiko looked at the walls as he swam, the rock was uneven but the tunnel was definitely not formed naturally.

Eventually, the tunnel came to an end leading into a large cave the size of two football fields on edge Hiko carefully entered the cave. Just when he was past the opening Hiko felt a malicious intent behind him. Dodging to the side Hiko avoided the giant maw that tried to eat him, expanding his En to the entire cave Hiko mind stalled when he saw the creature.

With a long serpent body with a pair of front flippers, the creature was 200 meters long covered in black scales that somehow glinted in the darkness.

When the creature roared Hiko saw a maw filled with teeth easily able to tear ships in half, not backing down Hiko let his Nen grow to it's fullest. Hiko was surprised when he saw the resolve in the creature's eyes, the monster would die as long as it ensured Hiko's death. Pulling back his Nen Hiko got rid of any intent to harm the creature in front of him, as soon as he did the monster's eyes still were wary but the fearsome image was gone. Taking a closer look Hiko saw the monster was covered with scars and wounds, one of which was a large gash along its body that was swelling with puss and leaking black blood. Hiko guessed it only had a few days left in its life.