Miaka is...possibly the most reviled anime/manga heroine ever. (Not by me, but by the masses.) She's a 14 year old girl who goes to another world that's based oon ancient China where she's the Destined Priestess who will save the country. Err...she's the extreme of the genki (hyper and outgoing and usually not bright) heroine type and a lot of the series is a mass of her making bad decisions and not thinking things through. But remember the part where she's a 14-year-old in another world, as opposed to an adult in their own world? I think the bell curve lets her be the smartest in the bunch.