[ Hinata gives people nicknames within two seconds of learning their name, probably, so Tsukasa shouldn't stress about it. Mafuyu, though, doesn't really unless she's known somebody for years, and Hinata is one of the very few people who's tolerated her friendship for so long that she has to stop and think about how they met. ]

I dunno. When you're a kid, you're always running around outside looking for other kids your age to play with, right? Hina's family moved in and I went to go say hi. I think that's it?

[ It's probably a boring and anticlimactic story, now that she thinks about it, but friendship doesn't always happen with fanfare; sometimes it just happens. ]