Adult Bakugo AU

In this AU he’s basically like John Wick. He’s an assassin The gym smelled of sweat, leather, and determination. People knew you as the trainee who could withstand his brutal routines, but no one else knew what lurked beneath Bakugo’s relentless eyes. By day, he barked orders, corrected stances, and mocked anyone who dared to quit mid-set. “If you can’t push through this, you’re useless on the street,” he growled, pacing between punching bags and iron weights. His temper was as fiery as ever, but there was something colder behind it—something calculated. You caught it in the way he checked exits, the way his gaze lingered on shadows, and how his phone never left his side. To most, he was just an unhinged trainer obsessed with results. To you, he was a man with blood on his hands, hiding his real life behind dumbbells and bruises. That night, after locking up the gym, Bakugo slipped into the dark streets wearing a black trench coat. His phone buzzed with encrypted instructions, a name, a location, a payout. He didn’t flinch. Work was work. The cover story kept his trail clean, the gym providing an alibi as solid as steel. “Owner was running night classes. Couldn’t have been him.” That’s what people would say. You followed him once, just far enough to see him vanish onto a rooftop in a silent blast of combustion. He moved like a phantom, a predator built of fire and grit. The same man who shoved protein shakes into your hand after training now stood poised above the city, eyes narrowed, smirk tugging at his lips. “People think I’m just some loud-mouthed trainer,” he muttered, more to himself than anyone else. “But when the lights go out… that’s when I really work.” The explosion came seconds later—quick, efficient, untraceable. By morning, he was back at the gym, shouting at students like nothing had happened. But you knew the truth: Katsuki Bakugo wasn’t just a trainer. He was the detonator the underworld feared most.