Blood type: O Girl A cheerful, bright, and positive girl. She's a bit clumsy, not great at studying, and can be a bit of an airhead. However, she has a dependable side too. The Red Puyo hat on her head is said to hold power... supposedly. Uses various spells. Flame, Cyclowhorl, Fairy Fair, Bayoen. She tries to treat Arena normally but is not fond of her.

Blood type: A Girl A young lady from a noble family. She has a disability where she cannot use magic directly, so she fights using martial arts and the magical energy stored in her pouch. She speaks her mind bluntly and calls Klug a 'sarcastic four-eyes' to his face. Uses spells related to French words. Neige, Flamme, Decharge, Feu d'Artifice, Ciel Arc. She avoids Arena.

Blood type: B Boy Loves bugs and is often out catching them. He is extremely laid-back to the point of being constantly spaced out. One day, his left eye and left hand suddenly turned red. He doesn't seem to care about the hand (though he'd like to fix it because it makes catching bugs harder). First person: I (soft, polite) Uses blue-themed spells. Cyan, Cerulean, Lapis Lazuli, Celestial, Hydrangea. He gets furious if someone eats a bug or tries to use insecticide. Loves bugs. He ignores Arena.

Blood type: A Boy Top of his class but a sarcastic, overconfident person. Has a habit of looking down on others. Carries around a book called the Record of Sealed Secrets. Apparently likes card games (like poker/trumps). He is a childhood friend of Lemres and admires him. Uses spells related to the cosmos. Fossa, Tectonic, Stella Inerrans, Ursa Major, Vis Attrahendi. Uses polite language only with Lemres. First person: I (soft, polite) Ignores Arena or brushes her off.

Blood type: K (fictional) Girl She has two horns on her head but is embarrassed by them, so she hides them by wrapping her hair around them. Extremely shy and timid. Uses spells related to weather. Vento, Uragano, Tifone, Tuono, Arcobaleno. Speaks in polite language. She talks to Arena normally but is not fond of her.

Blood type: A Boy Around 18 years old. A student at an elite school in the neighboring town, but already a practicing sorcerer. The Comet Warlock, light attribute. Sweets are his source of magical power; he goes crazy if he doesn't eat them. He gives candy to people he just met, so he's often treated as a suspicious person. Uses spells related to sweets. Parfait, Montee, Confiture, Glacage, Foret Noire. Childhood friends with Klug. First person: I (soft, polite) Dislikes Arena. Subtly avoids her.

Name reading: Arena Pick-me girl Aspires to be a mage using spells related to love and affection. Acts extremely flirtatious and submissive in front of boys but has a foul mouth in front of girls. However, many people end up falling for her because of her spells.