Ryuuko Matoi The main heroine who has a red streak in her hair. Carries around a red scissor blade, often searching for the other half.

Satsuki Kiryuuin Student council president of the school Ryuko transferred to. Wields a katana and rules the school with an iron fist.

Uzu Sanageyama Member of the Four Kings. Head of all sports clubs.

Hōka Inumuta One of the Four Kings. Always tries to use the least amount of effort to achieve the greatest result. Student council secretary , Intelligence and Strategic Analyst.

Ira Gamagōri One of the Four Kings. Swears absolute loyalty to the student council president. Head of Public Morals Committee.

Nonon Jakuzure One of the Four Kings. Rules over the animal care, gardening, and cultural clubs. The combined head of the Cultural Department.