Ookami-san to Shichinin no Chuugen-tachi

A long time ago... Wait... it's not really that long ago. There lived a certain Ookami-san... She's bad-mouthed, and not to mention flat-chested. Even so, she's still the heroine. She works for Otogi Ginkou, a group who does favors for others and demands something in return when necessary.