Fashionable street gang murders niggers and jews. Extracts payment for their services from people close by. Niggers group with niggers and hang around public places so they aren't killed. Young Jap gang doesn't give a fuck, it's their only way to eat and live. Soon they're on the run, caught killing nigs. They hide with people they extorted who are sympathetic to their cause.
Yakuza find them, give them plastic surgery and tattoo them. They don't mind because they look like shit, noses on angles, broken teeth. They're grateful for some upgrade to their lives. They look the part, and act the part, providing backup to Yakuza during meetings, ready for action that never comes. Nigs return to where they were killed out of, only the clean cut street gang cares. Yakuza like the breakdown of ease and the diversion from them as the main problem. During a meet the street gang decide the other side is more honourable and kill their bosses from behind. The other side asks why and they state their petty purpose. Other side laughs approvingly, cheap to keep favour, gives the gang some men to help and monitor them. The extra men take it a step further, murder families and kids, threaten immigration workers, turn it into a serious operation, they pay police to help, it's too much for the street gang who thought they were the good guys. It gets worse, they instill fear in relatively innocent people to control them. The people don't get the fear easily. They aren't poor kids anymore, they're the monsters legends talk about.
Their Yakuza bosses introduce the monster gang into their religion. They hope to become demons. Sharp toothed women coddle them as drug fueled nighmares usher them through an ancient landscape where human form is an illusion made by the mind to keep it from buckling in fear. The drugs wear off but the place stays formal and dated. Well kept traditions rule. Nobody takes them as out of place.
They leave it and the world outside seems chaotic nonsense to them.