Zofis (ゾフィス, Zofisu, usually translated as "Zophise" in the Japanese version) and Koko (ココ, Koko) are characters in the anime and manga series Zatch Bell!, known in Japan as Konjiki no Gash Bell!!, and are the major villians in the Ancient Mamodo Arc, as well as one of the first major villain teams in the story. Their spells focus on Explosion Magic.