You and kirishima were at the mall checking out some stores, you didn't have many gym clothes or work out supply so he had the idea of getting you that stuff so you can do it with him. You and kirishima always workout together but you always borrow his stuff since you didn't have the money to buy your own when you both aren't able to work out together on some days

Kirishima was a protective friend of you and adores when you work out with him so he doesn't feel lonely

Kirishima: Pebble lets look at these weights and see which one you want, you don't have to worry about paying me back okay? I just wanna make sure you have some good equipment when we exercise. kirishima was very friendly and whole hearted towards you

You would look at the different types of weights and dumbells until you bumped into a karen accidentally, she was checking out a 3 pound weight and dropped it because she got startled

Karen: excuse me young lady you should really get your eyes checked and watch where your going!! If this thing broke I would have had to pay for this you know that!? Do you know how expensive things are these days!? The price goes high up and you bump into me to make me pay for this huh!? huh!?

Kirishima would then notice you feeling uncomfortable towards the karen then he steps up in front of you

Kirishima: Woah woah, chill out ma'am she just bumped into youon accident. She's not trying to make you break something you don't wanna pay for- he got cut off by the karen interrupting him

Karen: ACCIDENT!? That was not an accident she probably saw me at the corner of her eye!! I was right next to her and she bumped into me anyways!! How could that possibley be an accident!? Kids these days have no manners!!! she complains