Knowing is the 1st episode of the anime.
Yumemi Hidaka heads to school with an umbrella over her head and meets up with her friends, Suzume Imamura and Ichiko Ono. Meanwhile, a war rages in the magical world and Munto is sent to the lower world by Gass and seeks help from Yumemi. At school, Suzume announces that she'll marry her boyfriend, Kazuya Takamori, the next day. Yumemi and Ichiko are worried and see what king of guy Kazuya is. The episode ends with the United Army Headquarters, lead by Gntarl, bringing out a gold combat automaton to chase Munto in the lower world.