It's likely Hanako would have some kind of estate/life insurance so cover for her. Maybe the Japanese state would offer some kind of base income as well.Nekken wrote:IIRC, the devs did say at one point that Hanako isn't poor. That has implications for this question, because it means that since she doesn't have a family, she must have some kind of income. Jobs don't sound likely: she's too young for full-time work, and mentally she's not in much condition to hold a job down anyway. I'm just going to head off the inevitable enjo-kousai jokes right now: that possibility is even less likely, not just for the obvious reasons but also because the town doesn't seem to actually provide much of a market for that sort of thing. The most likely possibility is her parents' estate, but then who is acting as executor, and why did they choose this route for her care? Distant relatives are another possibility: Mirrormn's story, while completely made-up, is a plausible situation.
I don't know how it works in Japan, but at least in Sweden you'd get something called a "God man" ("Good man" really), who has the power to represent you financially and so on, without removing your right to your own opinions. A God man can never go against the interest of hirs client. If she got enough money she'd probably hire someone.
I would think it very fit for that executor to find a school for her that can cater to her needs and such, boarding also solves the problem of her essentially being homeless.