oh that's a GREAT question actually; tbh part of the reason why i suggested this was the possibility of meow ending up in the awkward position of Gender Senpai to ayako

Given that they're living together and it'd be pretty hard to keep a lid on Meow and Miyao's situation forever, I'm leaning toward Ayako knowing about Meow, and Meow having an impression that Ayako is up to Some Shit while Miyao is too buried in the mindset of "if I'm dealing with the pressure by meeting it head on, then Ayako must be coping exactly like I am" to really wonder what his other sibling gets up to.

Since Meow becoming less of a hermit is a recent development, maybe we could do a thread of Meow eventually following Ayako out of concern and then going "GASP IS THAT A *WEED*" or similar when she actually sees what Ayako is doing as an early thing? It'd be a good starting point