A class consisting entirely of students possessing abnormalities. Class 13 is featured in Medaka Box and Medaka Box Abnormal.
This is a class consisting entirely of students possessing abnormalities. Many are involved with the Flask Plan, an experiment overseen by the Headmaster of Hakoniwa Academy to create a Perfect Human.
The most prominent members of the Flask Plan are the Thirteen Party. This group was originally made up of the thirteen most exceptional Abnormals with in the school, but with the loss of Unzen, the group was reduced to twelve. These twelve are further divided into two groups: the Front Six and the Plus Six.
While as fickle as other Abnormals, the Front Six are invested in the Flask Plan enough to at least answer the chairman's summons when he calls for them as well as follow his direction to a point. Each have there own set of morals and ideas they live by.
Stronger and more unique than the other members of the Flask Plan they feel there is no reason to attend school as there is no point to it.