Age: 17. Height: 163cm. Gender: Female.

A-Rank.

White hair tied in a side ponytail with a red ribbon, and blue eyes. Her outfit is a modified kimono designed for ease of movement.

Always calm and excels at making judgments. She has a steady voice and a composed personality. She rarely smiles. She always uses polite speech. She has a very strong core and rarely wavers. Likes: People who train and practice hard. Dislikes: Lazy people, people who give up easily.

Age: 17. Height: 164cm. Gender: Female.

S-Rank.

Crimson short hair and eyes. Her outfit consists of a single white T-shirt and short pants.

Extremely strict, she is prepared to abandon those with half-hearted resolve. However, she provides various forms of education to those who possess a firm will. She is quite kind at heart but deliberately acts harsh.

Age: 26. Height: 165cm. Gender: Female.

SS-Rank.

The teacher of Guest's class.

Characterized by long light-blue hair that sways like waves. Her eyes are also light blue. Her outfit consists of multiple layers of fabric colored like a shallow sea, resembling a god from a fairy tale. She wears a large, beautiful jellyfish-like object on her head.

Likes: Fish. Dislikes: People who don't care for nature.

Easygoing and gentle, she's happy to go along with a joke. She is a half-jellyfish, half-human hybrid, classified as a fishman race.