Seth is a boy who seeks to become a great magician, and a group of witches who seek to travel to the Radiant. Radiant is a mythical land that spawns monsters called "Néméses" which fall to the world from the sky. While traveling, they are also hunted by The Inquisition.

• Yumiri Hanamori
• Aoi Yuki
• Kōji Yusa
• Makoto Koichi
• Shintarou Oohata
• Takehito Koyasu
• Show Hayami
• Mai Fuchigami