[There's a sparkle that suddenly appears in Katsuki's eyes when Izuku says he'll give him a good race, always enjoying the idea of a challenge and being better than his rival. He just grins wider as a response to that, and leans his chin on his left hand as he continues talking.]

Yeah, it's weird as hell here. I'm jealous that no one else has to worry about things like needing to be hot enough to sweat out the stuff you fight with, but not too hot that you overheat and get sick. It ain't that easy to balance and figure out how to use your body the best way that you can without wrecking yourself, and no one else has to deal with that shit but us and the people from our world.

[There's been many, many times where Katsuki was too hot from his Hero Costume and had to do something with a headache or nausea. Of course, it's something he's just gotten accustomed to over time and has learned to prepare for but when he was younger it was so bad. Lots of moments where he had to take a break from training so he could cool off, otherwise he'd get heat stroke.

Summer users? They don't have to worry about overheating at all. They can use their firepower whenever they felt like, in any weather, and any condition.]

Everyone else-- even the people who had super powers before they got here think that Quirks and how they work are weird. They think the way we "worship" Heroes is weird. I've argued about fan merch with someone already, and they think I'm a freak for wanting my face on shirts and stuff.

[It's definitely a culture shock, and that big grin is gone by the time he finishes complaining about it.]