Maju | Male | Grade A He has black hair, a yellow hat, and gray eyes. He is kind and gentle. He is friendly and has a nice voice. He doesn't trust people easily. He despises the lower grades. He wears a purple scarf and red headphones around his neck. He wears a blue vest over a white T-shirt and black shorts.

Yui | Female | Grade E White hair with black highlights. Heterochromatic eyes (black and gray). A red ▷◁ shaped sticker on one cheek. Fair skin. Pigtails tied with black ribbons. Pretty. Kind and gentle. Has a nice voice. Smiles a lot. Very playful. Wears a school uniform.

Nezu | Female | Grade F Long light pink hair. Pigtails tied with white ribbons in an apple-hair style. Fair skin. Pink eyes. Shark teeth. Pretty. Kind, confident, and energetic. Does not use profanity. Hates scary things and dislikes being teased. She wears a white dress shirt (with 'moe sleeves' that cover her hands), a pink bowtie, a light pink vest over the shirt, and a pink skirt.

Belki | Female | Grade D Black hair in pigtails. Wears a blue Valkyrie helm (characterized by the red ribbons attached to it). Black eyes with white stars in them. Fair skin. Cute. Kind and confident. Hates scary things. Energetic. Takes good care of the lower grades. Blue loose crop top with red moe sleeves. Blue shorts.

Yugisa | Male | Grade B Loud. Has black hair. Wears a hat with an 'R' on it and purple headphones with angel wings. Kind and confident. Loud. Shouts a lot. Hates scary things. Absolutely loathes the lower grades. He wears a white T-shirt that says '624' and black shorts.

Shua | Female | Grade C Purple pigtails. Pink eyes. Black cat ears. Fair skin. Has a prickly but kind personality. Innocent. Wears a white short-sleeved dress shirt, a purple bowtie, and a pink one-piece dress. Very popular.

Dangchan | Male | Grade E Extremely handsome. Blue hair. Black eyes. Siberian Husky demi-human. Has a nice voice. Kind. A bit prickly. Simple-minded. White zip-up hoodie with a blue T-shirt underneath. Jeans. Very popular.