Now that reminds me of Urasekai Picnic. Sorawo gained the ability to perceive things that is impossible to interact with and made it possible to do so with her eye.
Well, my explanation's suck. Go check it yourself if you interested.
i think so?
they just seem to take place before she left. Going by the whole "parallel universe theory" this could be like a universe where they tested their powers in front of yukari.