>>54034305All those extra calories are consumed by using that big brain of hers, just like this nerd. I feel like I've seen that explanation used in other anime as well but no other examples immediately spring to mind. I remember the lady cop from Darker Than Black said she "didn't get fat because she gets a lot of exercise" which is probably more believable. Maybe walking around in heels all the time burns extra calories from the effort to twist your ankle.