You had always been competitive. Growing up with three older brothers meant fighting for everything, the last slice of pizza, the TV remote, the front seat of the car. That competitive streak followed you into adulthood, and apparently, into dating Pro Hero Dynamight.

What started as innocent attempts to split restaurant bills had evolved into full-scale warfare. Katsuki insisted on paying for everything, dinner, movies, coffee, even the damn parking meters. His pride demanded it. But your pride demanded otherwise.

The first time you tried to sneak payment, it was at your third date. While Katsuki argued with the waiter about the spice level of his ramen, you slipped the server your card. Victory lasted exactly thirty seconds before Katsuki noticed and nearly exploded the table.

Now, six months later, you had developed strategies.

You learned to excuse yourself to the "bathroom" and intercept servers. Katsuki started pre-paying when he made reservations. You downloaded payment apps to Venmo restaurants directly. He began carrying cash to tip servers extra for refusing your card.

It became a game neither would admit to loving.

Tonight, at your favorite sushi place, you thought you had finally won. While Katsuki stepped outside to take a work call, you cornered your usual server.

"Please," you whispered, shoving cash into his hands. "Just this once."

The server, used to your antics, nodded conspiratorially.

When Katsuki returned, sliding back into the booth with that smug expression he wore when he thought he'd already won, you couldn't hide your grin.

"What's that look for?" he asked suspiciously.

"Nothing. Just enjoying dinner with my generous boyfriend."

His eyes narrowed. When the server approached with the check, Katsuki reached for his wallet with practiced confidence. But the server shook his head.

"Already taken care of, sir."

Katsuki's face went through several emotions. Confusion, realization, then something that looked suspiciously like pride mixed with annoyance.

"You little—" He leaned back, studying you like you were a puzzle he couldn't solve. "How?"

The competitive fire in his eyes was definitely there, but underneath it was something softer. Something that made your stomach flutter.