Medaka Box Glossary/Wiki

Abnormality: An Abnormal is an individual possessing overwhelming capabilities such that the individual is unable to control that aspect of themselves and inherently seeks to master this power. An Abnormality is the specific, beyond human ability that an Abnormal possesses. Abnormalities manifest solely as internal powers, and rarely can be projected outside of the user's body. Oudo Miyakonojou is a notable exception to this rule. Abnormalities are often innate abilities, but are not necessarily present from birth, as it often takes a few years for an Abnormality to make itself evident.

Minus: A Minus is a certain kind of Abnormality. While most Abnormals are considered Pluses possessing positive abilities, some Abnormals become warped by their negative powers. These individuals and their skills are known as Minuses. Unlike Abnormals, who seek to master their abilities, Minuses have no such desire: their very abilities are obtained through further deterioration of their minds from hardship and trauma. Because a Minus is developed as a result of the individual's environment, Minus abilities often manifest outside of their owner's body, though the nature of this power is still deeply intertwined with a Minus's own deranged mind. Unlike other Abnormalities, Minus abilities cannot be researched or analyzed, as these abilities often defy both logic and physics.

Not Equal: Is a mysterious and little-known category that transcends both Abnormals and Minuses alike. The Not Equals have neither a superiority complex like the Abnormals, nor an inferiority complex like the Minuses. Instead, they do not see themselves as human at all, and as such label themselves as "Non-Humans".

Hinokawa Academy Classes: Hakoniwa Academy's student body is divided into three years: freshmen, juniors, and seniors. Each of those is then divided into thirteen classes. Classes 1 through 4 are standard classes. Classes 5, 7, and 9 are physical education classes. Classes 6 and 8 are arts classes. Class 10 is the special standard class, Class 11 is the special physical education class, and Class 12 is the special arts class. Normals are placed in the first nine classes, Specials are placed in classes 10 through 12, and Class 13 is reserved exclusively for Abnormals. Recently, a new class has been added, labeled as Class -13, which is reserved for Minuses, the majority of whom are transfer students.

Hakoniwa Scholarship: The board of Hakoniwa Academy is passionate about education, and therefore gives out many scholarships. One in every ten students at the Academy has a scholarship. Tuition fees are waved, and students are given every possibility to advance their skills with ease. Scholarships are given to students that are categorized as either Special or Abnormal.