hints of a troubled home life? she ran away once, and now spends most of her free time at that cafe
i don't mind it tho i don't think there always needs to be a sadder backstory (esp since tomboy girl said it in a lighthearted? way), tho if i had a lot of extra money from an allowance or part time job at that age i feel like spending time in a fun place is better than home
tho i wonder, other than like police questioning about a curfew if a minor's out super late or if train tickets are expensive in japan depending on how far you go, i can totally imagine a hormonal teen/going through puberty and having a fight with parents and 'running away' by going on the train and going as far as possible even if they aren't that serious about never coming home as opposed to having actual domestic problems