The lack of information in the beggining makes it confusing, but makes you empathize better with one of the main character. Over all, most of the episodes it's you trying to pull together all the information they are giving and trying to understand what the hell is going on, wich makes it tough to watch. Even so it all comes together in the last episodes, making this anime very good, not only because by then you'll understand what is happening, but because if you analise it from the psicological and social part of it, and you empathize with the characters you'll understand what mental illness would looklike if it could be used as something dangerous