My Omega

Chapter 20

Remastered: January 20th, 2025

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The atmosphere at U.A. High School was charged with excitement that morning. It had been a long time since a field trip, and the students buzzed with energy as they prepared to head to the U.S.J. (Unforeseen Simulation Joint)—a state-of-the-art training ground designed to simulate a variety of disaster scenarios. The facility was meant to push their abilities to the limit, testing everything from rescue tactics to combat under intense pressure. A perfect opportunity to see who could keep their cool—and who would crack.

But for Katsuki, the thrill of the trip was overshadowed by something else—a deep, gnawing tension in his gut. His mind wouldn't let go of the conversation he'd had with Izuku weeks ago about sharing a dorm. The shift had been subtle at first, but now every time he was near Izuku, it felt like an unspoken weight between them. Something had changed, and Katsuki hated that it unsettled him in ways he couldn't explain. Even with the trip ahead, his thoughts kept spiraling back to Izuku's presence—the quiet confidence in his demeanor, the way his scent seemed to fill the space between them like an invisible thread pulling them closer.

Izuku hadn't changed outwardly—he was still the same nerdy, eager-to-help, slightly-too-gentle-for-his-own-good Izuku. But Katsuki could feel the difference. He couldn't ignore the way his body reacted whenever Izuku's gaze lingered on him just a little too long, the way his heart seemed to thud in his chest whenever their arms brushed. Katsuki had already told himself that it was nothing—just an Omega's overprotectiveness. But deep down, he knew he was lying to himself.

He could feel the eyes of his classmates on him as they boarded the bus. Everyone was talking, laughing, making jokes about their plans for the day. But Katsuki couldn't stop glancing at Izuku across the aisle. His green eyes flickered up, meeting Katsuki's gaze for the briefest of moments before quickly looking away. The awkwardness wasn't lost on either of them.

Katsuki scoffed under his breath, trying to force his mind to focus. Focus, damn it. He didn't need to think about that. He didn't need to think about Izuku's scent lingering on his skin from the moments they spent together in the dorms. He didn't need to think about the way Izuku's body felt so damn close to his whenever they were forced to share space. They were about to train. That's all this was—a damn training trip. A chance to prove themselves. Nothing more.

The U.S.J. loomed ahead as the bus made its way to the training grounds. Katsuki could feel the pressure of the situation even before they entered the facility. This wasn't just a test of strength; this was a test of their ability to work under pressure. The simulation joint was equipped with everything from urban warfare zones to natural disasters like fires and floods. Today, they would be testing their rescue tactics in a collapsed structure beneath the surface—a simple, straightforward exercise... except Katsuki was paired with Izuku, and the thought of being trapped in the dark, confined with him for an extended period of time, set his nerves alight in ways he hated.

Izuku's presence was... different. He was always close, always near, and now, with every step they took toward the underground bunker, the awareness between them felt too intimate. It wasn't just about being partners for the day—it was something deeper, something unspoken that had woven itself into the fabric of their relationship. Katsuki could feel it. The way his skin prickled whenever Izuku was within arm's reach. The way his senses sharpened, and the air seemed to grow heavier, suffused with an electric tension.

The deep, pulsing awareness was too much to ignore. But he did. He tried to push it down.

The underground bunker was dimly lit, the sharp hum of malfunctioning machinery creating a disorienting backdrop as they began their task—clear the rubble, find the "dummy," and rescue it. It wasn't a difficult job, but the oppressive silence between them made it feel like every movement, every step they took, was amplified.