>>2789963Possibly Nana.
She's 17 years old except that's obviously a lie. She votes in one instance which in Japan you can't do until you're 20 and she talks about things that prove she was born at least in the 1980s. She's based on Kikuko Inoue who claims to be forever 17. Kikuko Inoue is 58 and still claims to be 17 years old.
She's whatever age you want her to be.