Hahaha, the fluff is invincible! Bow to the fluff!
@baconcat
Mass isn't the issue here, though. Volume is. And aside from that, you are talking about a manga where magical creatures exist - one of them just turned into a giant snake a chapter ago. So you trying to bring normal physics into this is the actual nonsense.
Mass is, though, for reasons I can't be bothered to entertain with elaboration at this point, for as you said so well, this be a manga with magical creatures.
Aah, I have flashbacks to my days of editing. Poor G-P. For me, what helped me to move forward was "damn, they won't look at this bubble longer than 5 seconds. 10 at max."
Thanks for the chapter