Overlord of Sin

"Logan, you really plan to fight your own son?" Says an older man who had an eyepatch with X-shaped scar around the outline of his skin, he looked like a more bulky pirate or some kind of warrior assassin.

"Aragon, It is a fathers duty to teach his son discipline," Logan said with a stern voice as stomps into the arena without any weapon. He was going to fight his son with his fist.

'Where exactly am I? What kind of world lets young kids fight other each to the death?' Drakos thinks to himself as he looks at his hands which were covered in Seron blood. Drakos searches within his mind to figure out what the hell was going on, all he knew at the moment was that he acquired the Heroic System, everything before that was just a big blur.

Logan stomps his foot down a surge of wind and bluish aura explodes out of his giant body. Drakos father was about 6,8 ft tall while Drakos was just 5,4 ft. The size and body mass difference were insane. Yet Drakos stood his ground.

'Does he plan to use to that power on his son?!' Aragon gritted his teeth and clenched the stone edge of the coliseum battle arena balcony, he was the Wise One of the Warrior Clan of this village A clan which was part of the Phoenix Kingdom which was home to the Rulers and so-called gods of this world. A Kingdom filled with riches and young beauties.

Logan's eyes started to glow a neon blue color and mist of steam of expels out from his nostrils like he was a wolf ready to devour its prey. His eyes widen and turned more primal, his veins begin to pop out all around his biceps and entire body. He was like the visible blueish energy around him was buffing up his body. Suddenly the energy around him starts to form a massive Buster Sword made up entirely of Logan's Qi. The blue energy was indeed his own aura which was molded and forged to make the Buster Sword.

'That must be his Phantasm,' Drakos remembers the stats and powers that he chose for his Heroic System. He knew that a Phantasm was a manifestation of one's weapon of choice, it could be any weapon, even a common knife. But the one that was in front of him was a goliath destructive weapon that made everyone the arena roar and chant for Logan to slay his own son.

Drakos looks at them and clenched his fist. 'So this new world isn't like some Isekai bullshit, only the strong survive here, so if that's how it is,' He looks up at Logan with his beaming golden eyes, he was going to unleash his Phantasm, he figured the only way to do that was to either release out his Qi or mana, enough to form his Phantasm as Logan did.

In a split-second Logan chargers ahead with his Phantasm Buster Sword that was made with blueish Qi energy and some mana particles. He strikes forward, however, in an instant the Phantasm weapon is quickly gripped by a massive Wolf creature's powerful jaws, this giant wolf resembled the Mythical Fenris Wolf, expect it was covered in hellish blueish flames. The wolf made of Qi and Mana howled a thunderous howl as charges ahead with the Buster Sword Phantasm in its mighty jaws!

'That is his Soul Form! Shit!' Drakos' eyes widen, he had never seen such power before in his mortal life. This was the stuff of legends.

"Show me, son, just how powerful you really are. I have waited all my life for you to finally awaken your powers," Logan gives a cold glare at Drakos as punches forward, his icy blue eyes started to turn more primal and wolf-like by the second, it was like he was becoming a wolf beast himself. As Logan punched forward the Spirit Wolf followed his movements, the Spirit Wolf howled as it drew closer to Drakos.

'Phantasm activate!' Drakos commanded to his Heroic System. Nothing happens. 'Dammit! Soul Form unleash!' Drakos punched his fist down on the snowy stone ground of the battle arena. The results were the same.

""ARH-WOOOOOOOOOOOOOOOOOOOO!!!" The Spirit Wolf Howled as it strikes Drakos head on.

'Is this really how I die? No. Not again! Not ever again! I will become powerful! Not matter what!' Drakos thunders out as a gust of reddish and black Qi and Mana blasted out from his young body. His entire village clothing ripped to shreds by the sheer power to was being unleashed from his body. The ground started to shake and rumble. Then it quaked and started to crack.

"What is this power?" Aragon face was full of fear.

"Its a demon! The Devils Child!" Scream out all of the villagers.

'No this can't be...How did my brother become so powerful?!' Kara was now shaking at the sight of her own beloved brother turning into a complete monster. Her whole world was turned upside down.

Kara's older sister also watched in horror, her mouth was wide open, her crimson long hair fiercely fluttered by the amount of pressure formed in the battle arena and her rather insanely large buxom breasts jiggles wildly everywhere like watermelons in a tornado. The two sisters watch their brother form a Phantasm never seen before in this world. What's even more shocking was that their own brother was never able to summon his Phantasm! This day was getting crazier by the second.

Golden glyphs spun around Drakos' young body and some black glyphs appeared below his feet. Suddenly glowing blood-red and gold markings started to form all around Drakos biceps and soon they spiraled downwards to his forearms and knuckles. It was like he had a glowing tattoo wrapping around his arms. A loud thunderstrike is heard in the distance, his Phantasm had awoken from within. It was said that a Phantasm had a soul of its own. That the weapon itself was a part of its wielder. On this very day, everyone will know who Drakos is.

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I will do the mass release I promised tomorrow.

Important: Btw the Mc has three sisters. One is Kara, can you suggest a name for the other two sisters?

Kara has crimson hair and so does her older sister. While the other one has silver hair and is the 'bossy on'. Who knows there may be more... But lets focus on building the perfect harem first.

Here are some extra R-18 tags lol: Milf, Wincest, Taking Queens, and Princess, and even higher ranked woman. I will put a rank system soon. Just know Logan is one powerful Warrior/Knight without spoiler anything. Have a good a day!