Unfortunately, we don't see what she can really do. Except kill people by either exploding them, or giving them a heart attack or whatever it was, and even then those moments aren't scary. Actually it's more of a hell yeah, but then we get to volume 9 where she's the most dangerous person in the manga.... She's said to control people but we don't get an explanation onto how, or if this person or that person is under her control. However, you know who we got to see actually control someone.... Nayuta, still not shiver me timbers territory one bit however just the fact that we get to see her effortlessly control Asa and Yoru, is much more terrifying than everything Makima did.
Okay i ain't gonna lie i don't rlly like boogie never have but he's been through lots of trauma in his life and i mean LOTS. This guy can't control his weight and is depressed and ik most of these people watching are just kids and don't understand but he doesn't need hate man and he isn't a loser all his childhood to escape his abusive mother toys and other things like that were his escape so his arcade machines and toys are what help him escape he doesn't deserve hate. Just for everyone watch his draw my life maybe you'll understand more. That's why when he mentions child abuse that's another way how he gets through his trauma jokes