I wasn't thinking of it as a shared dream, but now that you mention it, this seems more like the type of dream Levi would have. Robots and talking pandas and everything.

[He's just saying!! This is way more chuuni than most of his dreams would ever be!! I think he knows the word chuuni. Close enough.]

I'm usually busy with different stuff in my dreams, and also-- Hm? [tilting his head like he's forgotten why 'Devildom' is questionable, and natch, he hasn't been outside of it in ages, has he] Where the devils live. The Kingdom of demons.