It would appear as though someone deflated Mai's breasts and transferred all of that mass to her ass. Lord only knows how much lower those things would go if she weren't making a futile attempt at holding them up.

(In before anticipated "real breasts sag" response. That is why mankind invented the bra. And silicone.)

I don't think Mai really looks right drawn this way. She was really meant to be petite... with massive knockers of course.

her legs are nice but her breasts look deflated here

her hair also does not look like usual its a pretty pic overall of course