Kana is cute here, but I also like the comments thrown from the sidelines (peanut gallery)...
Miku seems to be the only one who actually tries to bring "her" Kana-chan back.
Hinata... she's apperas to be baffled, admiring what she sees.
Kaede, well, she's is cooking her envy to the boiling point.
And obviously both Konno sisters are in full spite mode.
But especially that part makes me wonder what actually happens in reality.
And even stranger - no reaction from Sou or Suzuki?
Suzuki likely wets his pants... ("I shall not speak for I see no evil and hear no evil. Tasukete, Kami-sama!")
Sou on the other hand could be utterly perplexed because of whatever Kanaria does IRL.
She was very close when he fed her, so maybe she's snuggling up or drops dead in his lap (but I doubt it's the latter).
I don't think Kana has ascended, she's likely doing something ridiculous and her inner thoughts leak out (same as Yuri).
But I can imagine it might be way more hilarous.
What if Kanaria plays out her delusion like a skit. Not just random ramblings like Yuri - she's doing manzai on autopilot paired with voice acting the whole thing. For all to hear. I wonder what Sou would have to say to that.