Karen Shirogane  

, 銀 華恋

Karen, who was initially presented as a demon, is actually an angel that fell from grace and lost her halo. Despite being honest and gentle to a fault, her efforts to appear demonic are often perceived as angelic, although they can be bothersome. She attended school with Genjirō and Tōkos, and currently serves as the student council president at their alma mater, having held the position for over two decades due to Akane's request. Her feathers have the ability to evoke one of the seven deadly sins in anyone who comes into contact with them.