An arch wizard who is descended from crimson demons; powerful humanoids who possess black hair and red eyes, and sport chuunibyou characteristics. Megumin only knows a single skill, the incredibly powerful explosion magic that immediately incapacitates her for the rest of the day when cast, and refuses to learn any other skills. (Source: Wikipedia, edited)

Hitagi, a main female character of Bakemonogatari, is a weak-looking girl with an "incurable disease." She is in the same class as Koyomi, but he has almost never heard her speak. When she was in the first year of high school, she encountered a mysterious crab, after which she became nearly weightless. Ever since then, she has avoided contact with everyone else, threatening everyone who discovers her secret. She jokingly labels herself as a tsundere and speaks with a sharp tongue.