I've have been wanting to write an A/B/O story for ages, and here we are. I have the Omega AU in my 'Fire Fist Ace - Story Collection', but because they are so different from each other, I'll be continuing that one. I know for the Tangled AU, it got stopped once I began writing it's book version 'Born of Flames' but they were going to be pretty much exactly the same. This is a modern day, mafia/gang A/B/O story.

So this is going to be a mainly MarcoxAce story, but with other ships, such as KiddxLaw, ZoroxSanji, LuffyxNami, and maybe more. There is going to also be a one-sided Teach/Ace, considering the nature of this story. Ace is an Omega, and Marco is an Alpha.

Warnings: Manipulation (emotional and physical), Discrimination (against Omegas), possibly murders, Kidnapping, Stress, Mpreg (just in case you're not into that sort of thing.) mentions of rape, pretty much slavery (for Omegas) and if there are more I'll cover them during the story as we go, but so far that should be it.


Prologue

Raftel was a very large city, often divided into four smaller ones, which were North Blue, East Blue, South Blue, and West Blue. Each was ruled over by the top gangs. North Blue, by Germa 66, were once one of the most powerful mafia families, but now no longer. They had started losing ground to other gangs ten years ago, such as the Donquixote gang, who later moved past South Blue to take over Dressrosa, a city close by to it.

The Portgas family, a very old, and powerful gang that ruled over South Blue, disliked the Donquixote gang at first. They slowly build up a friendship of a sorts over the years. They had the country of Alabasta at their back, and the Royal family remained somewhat friends with the Portgas mafia family.

West Blue was ruled over by a number of gangs, though the Fire Tank gang was beginning to overpower the other mafia families there.

The last was East Blue, ruled over by Gold Roger, the Godfather of Raftel himself.

He was allied with Sphinx, the Whitebeard family's city, that sat close by them. Roger was loved and hated by many, his fame, fortune and strength earned him many friends, as well as enemies. There was only one women he fell in love with though.

Portgas D. Rouge, the mafia leader of the Portgas family, and his rival.

Twenty years ago was when everything changed. Shiki, the Golden Lion, attacked Gold Roger, and they fought for days. Shiki was defeated, but Roger was left tired, and thus, Rocks D. Xebec, leader of the Blackbeard gang, attacked.

They fought for ten days, but in the end, Roger fell.

His gang were chased out of East Blue. Roger was executed in Loguetown where he was born. Xebec took everything of Roger's, his fortune, his fame, and even tried to claim his Omega, but a Portgas never surrendered.

Rouge escaped, despite being pregnant, and gave birth to a boy with grey eyes like her father's, dark hair like her lover's, and her own wavy hair and freckles.

She named him Gol D. Ace.

The nurses who had helped her were forced to rat her out. Rouge had managed to hand over her child to Monkey D. Garp, a high ranking police officer, so that Xebec couldn't harm her pup, before the Alpha took her away.

That night she murdered him, and in return, she was executed in Loguetown, where her mate had been executed eight months before her.

They had both died grinning.

Bluejam, one of Xebec's subordinates, took over for him, and then, twelve years later was murdered by Marshall D. Teach. Teach had been a member of the Blackbeard gang for years, but had infiltrated the Whitebeard gang, to pass Xebec information on their movements.

That was when the rules had changed. Omega had been deemed too emotionally unstable, and had to be owned by Alphas and Betas, so that they could be kept in check.

After all, they did not want another Omega to murder a gang leader. Not like how Portgas D. Rouge had murdered Rocks D. Xebec.