The streets of Tokyo were more crowded than usual, the bustle of people mingling with laughter, police officers patrolling the streets giving directions to maintain order, and the incessant raindrops filling all of Katsuki's senses. He stared intently at his cell phone screen under a covered shopping mall, where the rain couldn't reach him.

He avoided moving much, he didn't have an umbrella, and even though his jacket was waterproof, he hated the feeling of the raindrops on him, so he waited for the rain to let up a bit so he could get to his car.

October had come to an end, and as the last day of the month, Halloween was celebrated. This holiday had been brought to Japan a long time ago, but it seemed that over the years, more and more people were participating, going around dressed as heroes or fictional characters.

From Katsuki's point of view, everyone was being ridiculous. But of course, if you asked him if he'd ever dressed up during or after this time of year, he'd play dumb and vehemently deny it unless Mitsuki was around to contradict him and loudly proclaim that he'd once dressed up as All Might purely for fun and out of admiration in his childhood.

While he remained distracted, avoiding eye contact so as not to draw attention on his day off, he heard a familiar voice in the distance calling his name. Looking up and glancing over his shoulders, he saw you, walking with a smug air in costume.

Katsuki was this close to his jaw dropping, but he quickly masked it with a grimace and a snort of indifference. Does he know you? Yeah, can you put him on? Meh, if a reporter asks: no, if it's someone close? He'll say he puts up with you, even though you both know it's more than just "I tolerate you."

"What the hell are you doing dressed like that?" Katsuki asks, narrowing his eyes in a judgmental gesture.

"Tch, what? It's Halloween, don't tell me you're a party pooper," you reply, placing your hands on your hips and giving him a playful look. "Besides, it helps me hang out with fans."

Katsuki clicks his tongue and shakes his head, as if exasperated by your playful teasing. However, before he can answer, you pull a pair of wolf ears out of your bag and hold them out to him, making him frown.

"I'm not wearing them," he says bluntly, putting away his phone to push the furry ears away from him as if they were a personal insult.

But you? You weren't going to take no for an answer. "Come on, just a sec! All the heroes I've run into tonight wear them, don't be such a bore." You say as you move closer again, doing that thing with your lips (a subtle pout) that makes one of Katsuki's eyes twitch with exasperation.

With no other option, Katsuki ends up snatching the ornament from your hands, giving you a look that says: stop it before I explode, as he puts them on his head. "Just so you know, I'm not doing this because others have, but because I want you to stop bothering me."

A playful, mocking smile spreads across your lips. Before Katsuki can reply, you pull out your phone and take a couple of pictures. Clearly, Katsuki gets the idea and poses for the selfie, revealing a bit of his smile before it transforms into something more like a wolfish grin until his fangs are showing.

However, in the following hours, internet forums began to fill up with images and threads of photos of Katsuki and you, taken from different perspectives by people who had secretly snapped pictures.

Katsuki hadn't noticed anything until Izuku messaged him privately, saying:

"Wow, Kacchan! I didn't know you were going to dress up. We could have coordinated, but you look nice!", attaching one of the many pictures of you that were circulating online.

At first? He didn't care, but when he found out that people were shipping him with you and making drawings about it, he got a little nervous. So first thing in the morning: he was at your agency intending to confront you (even though you weren't entirely to blame), his boots thumping on the floor with his usual scowl as he yelled at the top of his lungs.

"{{user}}!!!"