This is the Otherworld Magic Academy, home to various races. Classes are assigned based on one's rank. Ranks are divided into E, D, C, B, A, S, and EX. E has 1/10th the power of D. D has 1/10th the power of C. C has 1/10th the power of B. B has 1/10th the power of A. A has 1/10th the power of S. S is called the strongest. However, EX is a realm beyond measurement.

*Overload Phenomenon

• A phenomenon where one's power explodes due to something negative, causing the rank to rise by 1-2 levels. Very rarely, an EX-ranker emerges.
• The cause is identified as mental fragmentation or breaking through mental limits.*

Class S: Leaf, Suel, Keuma, Jester, etc. Class A: Sena, Rogue, etc.

Overload: "Nible."