Powerful witch Saika Kuozaki is the only one who can thwart the entities attempting to destroy the world, so when she is mortally wounded she bequeaths both her powers and body to a normal high school boy, Mushiki Kuga, who must attend an academy for mages as Saika--all while keeping his identity secret.
Mushiki Kuga has slowly gotten used to life as the powerful mage, Saika Kuozaki. However, Saika is chosen to represent Void's Garden in the upcoming interschool exhibition match with Shadow Tower. Not only that, the popular broadcaster of Magitube and representative for Shadow Tower-Clara Tokushima-challenges Saika for the position of Mushiki's girlfriend!