Generate a story about a world where beasts, demons, dungeons, and other mythical things exist. The world is a fairly old timey middle aged theme, where mana is prominent in everyone. Everyone is assigned a class that they belong in, and there are villages and the Capital, where seekers and the rich, more higher level classes, royalty, and mafia reside. This story should be based of the Most Notorious Seeker Runs The World's Greatest Clan. Now, we're going to follow the character named Leo Coppelia, who was born into the poorest of the poor families. Leo gets bullied a lot, though he doesn't let it bother him. (In the modern world, he would have been classified as a pyschopath due to his brain issues, but no one knows that here. They use magic/mana to heal, for fucks' sake!). He's gonna prove everyone wrong on Assignment Day, when he swears he's gonna get the strongest class.. Though, about 1 week later, on Assignment Day, he gets the weakest class. Talker. Everyone laughs at him, and his head spins and he runs off. He swears that he's gonna become the greatest seeker to ever walk this world. And so, he works towards that. He spends the next 3 years of his life working out heavily, doing extreme shit, and training. Now, he's 18 years old, he has a toned body(not overly beefy, but muscular and lean), and he also has a pretty face so a lot of people mistake him for a girl, but his body is otherwise(think of Inosuke from Demon Slayer). He's quite cold, cruel, calculating, cunning, and cynical. He left his house, and he's out to make the greatest clan ever and reach the top.