The series' female lead, a magician who accidentally turns Takeshi Nanase into a magician himself. She entered the mortal world in the hopes of tracking down her brother, who'd been kidnapped and brainwashed by the Ghost Trailers. They're out to capture her alive for some reason.
Accidental Kiss: With Takeshi in the story's beginning, leading to much tension.
Child Prodigy: She's an S-Class magician, and is only in the beginners' class because she disobeyed the school's direct orders when she went to search for her brother.
Clingy Jealous Girl: In the first episode, she is more bothered about Takeshi calling a girl she hasn't met before by her first name rather than the menacing guys in front of her. As the story progresses, she has become increasingly uncomfortable with Takeshi's growing bond with Mui.
Takeshi's friend. The third member of the group that become magicians. He becomes a skilled destructive magic user, an expert in the fire element.
Bash Brothers: He and Takeshi create a combo where he charges a magic fire bullet and Takeshi uses it to empower Twilight.
Big Brother Instinct: While he can be somewhat gruff and has trouble showing it, he is rather protective of his little sister. She becomes a magician when he gets into a heated argument with her about her going to a trip with only boys, and he loses control of his magic.
Butt Monkey: Has lots of trouble controlling his power, and tends to get into trouble.
Reasonable Authority Figure: She doesn't want novice magicians like Takeshi's group in the field because the most likely outcome is their own death, but she recognizes that they'll go after Miu's brother with or without official sanction. Thus, she offers to include them in The Team if they do exceptionally well on their exams.
Crazy Jealous Guy: His obsession with Kurumi is what made his relationship with Takeshi turn for the worse. When Takeshi admitted that he was dating Kurumi, Gekkou threw a tantrum, accused Takeshi of taking advantage of her when she was vulnerable, giving the latter no chance to explain, and things went downhill from there.
Game-Breaking Injury: He apparently got into an accident that made it very difficult for him to continue practicing kendo, which added to his ever mounting envy and hatred for his older brother.
Inferiority Superiority Complex: His hatred of his brother is fueled by a belief that he's inferior to his brother thus his desire to take everything from him (Kurumi, Twilight, personal pride) to make himself feel better.
Insane Troll Logic: My brother's dating the girl I like? I got into an accident afterwards? Everything is his fault! He tried to kill me! Better join up with a magical terrorist organization and eventually murder him after stealing everything he loves!
Psychotic Smirk: Even visible in a blink-and-you'll-miss-it moment in the opening sequence, an early hint of his true nature.
Took a Level in Kindness: Invoked. He becomes a much more agreeable person after coming to the school for mages, but none of the viewers are fooled. It's been all but confirmed that he's secretly working with the Ghost Trailers and that he's playing nice just to get his brother's guard down.
Mui's older brother, whose memories was modified by Ghost Trailers and is branded a traitor by the Academy. His memories are returned to normal at the climax of the first arc and he rejoins Wizard Brace.
Aloof Big Brother: A stoic antagonist at the start despite his little sister's pleas.
An Ice Person: His speciality is ice, and it comes in handy in the muggle world because he can use it against his enemies without technicallly violating the Gift.
Big Brother Instinct: After returning to his old self, he becomes a doting older brother to Mui again.
Your Terrorists Are Our Freedom Fighters: Attempts to convince Takeshi that Wizard Brace is an evil and oppressive organization whose destruction by the Ghost Trailers is needed to restore freedom to the magician society.
The leader of Ghost Trailers, who disappeared after the Great Magic War.
Big Bad: The leader of Ghost Trailers, instigator of the Great Magic War, and the one feared most by Wizard Brace.
Expy: A Big Bad who leads a faction full of magic-wielding supremacists with the goal of conquering non-magical people, then suddenly disappears for more than ten years, awaiting his revival? Sounds a lot like Lord Voldemort.