Naruto System in One Piece - Chapter 504: The Strength of the Four-Tailed

"So, that's how my life ends, what a waste of time it was...".
These were the last thoughts of a young man, shot by accident in a fight between local gangs. Little did he know that he would soon wake up in another world, a world of cultivation!
This is the story of the whoreson of a wealthy family, of a transmigrator that had no purpose in his previous life, of a demon that will make power his reason to keep on living.
Noah Balvan, after he transmigrated, will have to fight against his social status and the many difficulties of the world he was reborn in to obtain the power to stand free in the sky above anyone!

Ethan was betrayed, he was broken, left crippled by those he trusted most: Zachary and Ivy, the people who ruined his life. Stripped of everything, Ethan crawled through three grueling years in the abandoned depths of despair, desperate to regain what he lost.Until one final act of defiance opened the door to something greater.When Ethan completed a hidden quest, fate granted him a miraculous reward: a second chance.He awakens years in the past, on the eve of a revolution: the launch of Ethereal, the world's first fully immersive VR game and humanity’s obsession. Armed with memories of four years in Ethereal, he’s no longer the helpless pawn who lost everything.This time, Ethan knows every secret, every hidden quest, every exploit to climb back to the top. But when he steps into the game, the system unveils a shocking twist: a divine bloodline, legendary abilities, and a class no one believed could dominate.Ethan vows to rise once more, but this time, he knows where the paths of glory begin, where betrayal lurks, and where to find legendary treasures that will crown him king in this brutal new world.The stakes are higher than ever. Factions are forming, alliances are shattering, and the clock ticks toward an event that will rewrite reality itself.The weak will perish, and the strong will thrive.They betrayed him once.They won’t live to do it again.

After seeking pleasure in the nightclub and a night of romance, he discovered there’s a seed in his stomach;

“Hmph, my dumb big sister is in danger!” A mischievous grin spread across his face. “Hehehehe... this gives me the perfect excuse to finally use this treasure I’ve acquired but never bothered with!” He rummaged through his belongings, carefully selecting various items. “A bit of this... and this... and a dash of this.” Boom! The explosion of energy sent a ripple through the air as he laughed maniacally. “Hahaha! It’s done! Now, all I need is a compatible host for it.” Years later... “Did I overdo it?” he wondered in awe, watching as his creation wreaked havoc, conquering world after world with ease, as though stealing candies from children.