I'm With Stupid

These are just some of the impenetrable mysteries in Yoshiko Hanabatake's life: Why is her best friend Akkun always angry? Why does she keep getting zeros on her tests? Why do bananas taste so good? For one as enlightened as she, the answers are irrelevant. And yet her total obliviousness may prove to be a liability as the forces around her struggle for supremacy. Or, actually, she'll probably be fine.