Sakurasou no Pet na Kanojo is mind-blowingly offensive. It features a girl so childlike and so dependent that the main male protagonist has to tie her shoes, tell her to put on panties, remind her where she is, and tell her to change her white blouse when she spills water all over herself. Asking her to wash her face without drenching herself would simply be too much. Washing faces is hard. That's grown-up stuff.
Our empty-avatar-for-male-fantasy-fulfillment is Sorata, a normal average boring dude who got banished to live in Sakurasou, a dormitory for problem students because he refused to give up a stray cat he adopted. Aww. He sure does love cats. The problem is, everyone else in Sakurasou is a sex-starved loon—either pervert otaku, or women who think only of marriage and housework. Poor Sorata even has the misfortune of occasionally waking up with girls in his bed, practically begging to be his wife. That doesn't set women back at all! Although, that's positively progressive compared to transfer student Mashiro, the “pet girl” in question.
You see, Mashiro isn't actually dumb. She's actually an incredibly talented artist. She just completely lacks the mental capacity to do anything else in life, so Sorata has to basically be her caretaker. Somewhere, there is the sound of tissue boxes being ripped open, and the tell-tale plip-plops of a Jergens bottle being pumped. Because really, what we really need is more creative ways to degrade women. Smart, artsy women (see, it's not sexist if she's REALLY good at something, right?).
I'm not quite sure where my disbelief in this series maxes out. Try as I might to compile a list of all the things that made me throw up my hands in disgust, I can't quite shake the pet girl. Alright, so there's a house of girls who crave being housewives. So there's an inappropriate teacher who shoves her tits in everyone's faces. That's fine. Whatever. But when you get to the point where you have a high school girl who can't even put on her own shoes, you are about two episodes away from her getting lectured on how to use a spoon. Or maybe he'll have to help change her panties every time she soils herself. The possibilities are endless. I haven't quite figured out yet if she's a pet or an invalid, but both options are horrible.