I mean, It's not impossible that she'll show up later in Io's story. Io's aunt just likely won't play a notable part, and it might be more of a Chiaki or Shapeshifter situation.
Also is this where Sel was hiding the Amazon woman? Osako is likely ripped, but a girl that is around 6'2, would be interesting.
I guess what I had in mind is too greedy, Sensei and Io's aunt mingling while both wearing
that outfit, what a wonderous sight.
Also, those PJs are pimptastic. Lends strong weight to "Io was prostituted by her aunt" theories.
Was she really? It's pretty certain that at least one of Io's parent was the source of her unrevealed trauma, but I thought Io's aunt wasn't a part of anything malicious.
If her aunt really was involved in something bad, I doubt Io would still work and sometimes live at the bathhouse, let alone use that pimp suit to dress unconscious Sensei and get her funny bone tickled.
I mean if I got child prostituted and had to do any of the things above in my abuser's domain, I'd start vomiting in half a second (but I am not Io so yea I can't speak for this ultra complicated girl)
Plus, for someone like Uta who likely knows everything about Io's background, Uta doesn't seem to have any opinion with Io working at the bathhouse, so I'd say for now Io's aunt is clean (but of course this is assuming Uta knows everything there is to know)