Hm, maybe whatever this thing is, is doing something in similiar vain as that Farmer Fruit job from before. As far as Hama's side goes, that dude seemed oddly fine even with his face turning black. But at the same time we saw folks just floating away ? Yeah i can't tell as of now lol.
On second thought maybe it is some sort of a channel, Yume's side might be the one that "sucks" people in while Hama's side is the side that "releases" whatever it is into the people. Not sure what the bowing has to do nor what's gonna happen at the meeting point but wouldn't surprise me if it is another meet the quota or things get fucked scenario.