Yoko Littner is a sandy-haired badass with amazing booty that you migth remmber as among primary heroes from anime series"Gurren Lagann". But even if you don't you have nothing to worry about - this hentai parody is concentrated not on her own adventures and relatiosn with different characters but only on sexual part of her life. Being a superhero (or whomever she's being dressed like that) one day brings Yoko to the local hospital - nothing severe and more like just routine medical exam. And if you think that this perverted medic looks strange then you just didn't noticed his assitant! However, Yoko slightly cares for how they look as soon a sthey will do they function... but these two seem to get some other plans however which can be explained as"analyze Yoko Littner's body"!