I'm quite fond of this LP, if you do decide to take a look at it!

She doesn't really have a canon age! I headcanon her as 18/19-ish, which is about the upper end of what's plausible (she was either in or had recently left school before the start of the game, so) in an attempt to make a few backstory spoilers slightly less terrible than they would have been if she were younger. But I'm cool with her pinging as younger and being adopted!