>>81451955https://x.com/Kotoha_ktnh/status/1299553106494066688She talks about Chiba regularly and the pic (now I can't find anymore) was from a fan that had membership/fanbox and such, saying that he and she came from the same place (his profile says he's from Chiba). She probably opens about herself more in membership/fanbox so that's more hints towards Chiba.
As for Hanon, she's from a Kansai prefecture because she calls a stye as めばちこっ, something only Kansai speakers would do.
https://x.com/Hanon_moco/status/1437348934741942278 