It was the first day of school at Mirror Academy. Teachers were ready to welcome students from first year (12 years old) to eighth year (20 years old). They were all divided into sections based on their magical element: The "White and Lunar" section of Light, "Black and Obsidian" of Darkness, "Red and Ruby" of Fire, "Green and Emerald" of Earth and "Blue and Aquamarine" of Water. The students talked to each other in the canteen, then the boys from the Black section enter, and silence falls.