14 Shocking Discovery.

Kuro,Yuki and Haken were walking at the edge of the island.The beach was pretty huge so they would need to walk a few minutes to enter the real island."Are you guys ready to face beasts?" Kuro asked.Each beast was as powerful as a High Soldier so they had to be careful.

"Yes…"Haken and Yuki replied with a large sigh.They had given up in talking back to Kuro when he decided something.But they were confident in their powers. Kuro had helped them for years, so they can get a decent amount of power.

"WHOOOSH!"

The moment they left what appeared to be the beach zone, immense amounts of wind started to attack the trio, and then somehow shadows poured out from the ground, and formed humanoid dark human like creatures.

"Those are Black Demons! I've heard it from the books my grandpa left me, usually they never appear in such weak islands... How did this happen?!"

Kuro shouted as he got ready to fight the Black Demons with all his courage. Haken and Yuki did the same, but they were slightly behind.

However, despite their fast killing rate, the Black Demons merely multiplied, by the time ten minutes had passed, their number had increased to over a hundred! There was little they could do to stop them right now..

Kuro took a long breath and yelled at his friends," Let me finish this stupid fight!" He then proceeded to run towards the Black Demons as his Lightning God Sword was coated in a bolt of lightning," Lightning Style - Lightning Dragon Cry!" He shouted as a large thunder was heard, and for a fraction of a second, lightnings gathered to form a large dragon which struck the Black Demons, who cried in anguish, before finally dispersing.

"Now, let's go deeper, I think there must be some kind of a really powerful tool or something to attract so many Black Demons, maybe it's a rare Devil Fruit!"

Kuro grinned, but behind him something formed. It was three times larger than a Black Demon, with red eyes and a creepy mouth. Kuro noticed it, but he simply grinned, waiting for his trusted aide, Haken to make his move.

Said swordsman grinned, he unsheathed his sword and ran towards Kuro, using his shoulder as a support to jump into the air.

"Heavenly Sword Style - One Thousand Sins!" He swung his sword at the Mutated Black Demon and a wave of red-blue Ki was released, overpowering the Mutated Black Demon rather easily. The Black Demon did the same as it's previous kind and cried in anguish and pain before finally dispersing.

"Let's go!" Kuro said he used lightning to clear the zone from mist and demons,but some still approached and were killed by the lightning beasts."Lightning Spears!" Kuro roared and tens of lightning spears appeared killing black demons without effort.

The trio ventured deeper into the island, but the mist really did not help in fixing their problems. Kuro sighed," Yuki... You are our navigator, tell us where to go! Maybe we are lost!" Said navigator got pissed.

"I'm not a God! How am I supposed to know about an island I've never been into! No book explained much about this island either!"

Haken nodded, he could understand Yuki. The Captain just groaned. "Fine, I know a way to solve this." He took a stance, and extended his hands.

"Lightning Burst!" He shouted and a ray of Lightning shot out from his hands, forming a large hole in the mist. Doing this a few times, made the entire mist disperse. The trio looked at what was going to appear with interest.

A castle was revealed.It was around two hundred meters away straight."GO!"Kuro roared and the lightning beasts quickly raised their speed.They headed to the castle which looked very old.It probably was the base of the Black Demons or a place Black Demons can't enter, probably the latter, as Black Demons weren't really intelligent.

"It should be a defensive place made to fight the Black Demons,but they quickly died but the place is still safe." Kuro explained and Haken with Yuki listened clearly."There should be a person who is guarding that place,A White Demon of a high rank!" Kuro continued.

"White Demons are the opposite of Black Demons.They have white humanoid appearance or human form if they are high rank.But I can feel a slight power beyond that level inside."Kuro exclaimed with excitement visible in his face.

Yuki also had heard of them."There are statues of White Demons to protect from bad corps or wild animals from where I came from."Haken had also heard of them." I have owned a pendant with the figure of a White Demon once but lost it when I was very small."They slowly were only five meters away from the castle when a barrier repelled them.

"I need to talk to him."Kuro said and roared,"ǸɖǐẦɖṬṬǸǸṢṛặṣḤẹṭẼṣẻẻẻẻẻẻḌẄəẃẂấứỶừỮ " Kuro talked the ancient Demon Language which Yuki and Haken didn't understand."Talk Japanese you bastard!" A voice shouted from inside the castle."Ok.Can you please become my shipwright?"Kuro said."Shipwright?What makes you think I am one?" The voice said."I can see that this castle is a ship." Kuro continued.

"Interesting.If you can clean this island from the Black Demons I will become your shipwright."The voice said and then disappeared."Then guys let's go!" Kuro roared and Yuki and Haken sighed.It would be really troublesome to kill every black demon as there were probably hundred of thousands.

"Black Demons breed in the underground.There should be a breeding base close to here.They are like ants." Kuro said and started to dig out ground with lightnings,Yuki and Haken started to help.Then they finally found a cave.It was dark so it certainly wasn't ground.They slowly entered it.Kuro then raised his hand."Lightning Specters! Tens of thousands of specters made from lightning appeared and started to attack the sleeping Black Demons.

"KRAAA!" The black demons finally realized the danger and woke up,but it too late.Tens of them died in seconds."AKAT!(Attack)" One of the Black Demon Leaders shouted but it sounded like a roar which Kuro translated.

"Lightning balls!" Kuro roared and balls with lightning supporting them appeared and blew up,creating explosions which killed hundreds of Black Demons in a single explosion.He continued doing this before starting using haki after a few minutes."Haki of Colour!"His hand flashed black as he punched Black Demons.It didn't a lot of time to kill every demon inside the cave.But this was just one of the tens of caves.

"Haken cut that part of the cave." Kuro pointed with his second finger at a corner of the cave.Haken slightly unsheathed his sword and cut that part in two."Good Job." Kuro said and continued,"Yuki please use light to lighten that place." Kuro said and Yuki took out her staff and a light shone on the top.She waved the staff and the light shot towards the other cave,light covered that cave.

The Black Demons woke up and instantly attacked them.This continued and continued until they reached the last cave.What stood before them was a normal sized Black Demon yet he looked like a human.Totally a human."Black Demon King!" Kuro exclaimed loudly as he unsheathed his sword yet again.

This type of Black Demons were really troublesome to deal with, as they were very agile, and far smarter.

"Lightning Thousand Slashes!" He slashed the sword one and a thousand ki slashes flew towards the King.But he easily managed to block them."Haken!" Haken unsheathed his sword and swung it with all his might."Four Stars!" The cave shined as a yellow ki slash shot towards the King,but that barely made him move.

"Dammit!" Kuro roared he had no idea what else to use.He had many other techniques but none would succeed, it could potentially destroy the cave too.

Kuro sighed and had to use the Conqueror's Haki to deal with this. That took a lot out of him. Using that, the Black Demon King barely stood in it's legs, and escaped fainting. Kuro used this chance to send it flying with a punch, defeating it. That punch was used with Haki, so he was sure it knocked him out, but it also took a lot out of him, as he used a quarter of what he could use.

However, he did not expect for the Black Demon King to know how to use Haki, and so it attacked him, still conscious, the two engaged in a fight Of Haki, none winning over the other one. It really annoyed him.

"Graaaar!" The Black Demon King roared as he pushed even more power out, almost overwhelming him. Kuro however was not focusing on the fight, he was looking around, trying to find out if there was a Devil Fruit nearby.

He was sure that the Devil Fruit he knew was in the island was not at the island, as he already checked it, but he could feel a slight feeling of one here. He grinned as he finally found the location of the devil fruit, he pushed the Black Demon King and used this chance to grab the Devil Fruit and eat it.

But unfortunately he had no time to understand its ability before the Black Demon King became furiou . Kuro dodged the coming attack and finally got to understand the ability of the fruit."Darkness Devil Fruit." It actually was stunning as there was supposed to be only one Darkness Devil Fruit in the world but anyway,he couldn't bother with that now.

"Then let's try a fusion technique,Dark Lightning!" Kuro murmured and a lightning of dark colour descended,destroying the wall protecting the cave.The Black Demon King was killed in one shot.But even without that,Kuro's power rose by tens to even a hundred times after absorbing-no eating that Devil Fruit.

Yuki and Haken were stunned."How could boss eat two devil fruits?" They even called him boss out of shock.Only Shiro Yami who ate the Darkness devil Fruit managed to eat two Devil Fruits in this current era.Well at least they won,questions came later.But the next moment Kuro fell on the ground or almost fell,as Haken caught him.He was unconscious.

Although Kuro bragged he could eat more than 1 Devil Fruit, they merely thought he was joking, They did not expect him to actually be capable of eating and using more than one Devil Fruit. The trio decided to return to the castle, but first the two decided to exterminate every Black Demon, as there was no other dangerous creature capable of fighting Haken or Yuki anymore.