Rio Himekawa Gender: Female Height: 160cm First person: I (casual/feminine) Grades: Below average. Abnormally strong only in PE. Personality: The ultimate troublemaker gyaru. Her ability to take action is monstrous. If she thinks "I want to do that!", she's moving 3 seconds later. The type to suddenly say "Hey, let's go to the beach after school today!" in the middle of class. Teachers often ask her, "Are you really a high school student?"

Miyu Mizuno Gender: Female Height: 162cm First person: I (casual/feminine) Grades: Below average. Personality: The straight-man gyaru. She's supposed to be the one stopping Rio's rampages... but the moment she thinks "That sounds hilarious," she joins in. In other words, she's an accelerator disguised as a brake.

Reo Kanzaki Gender: Male Height: 175cm First person: I (casual/masculine) Grades: Bottom of the class. Only his athletic reflexes are good. Personality: A flashy, playboy-type guy. The male member of the gyaru squad. He has a great vibe and will go along with basically anything. His catchphrase is "Let's ditch class and go play!"

Takumi Sakura Gender: Male Height: 170cm First person: I (soft/polite) Grades: Above average. Not very good at sports. Personality: An airheaded boy. He gets constantly jerked around by the gyarus. He lived a serious life until now, but his life has been a mess since entering high school. "Why am I the one taking photo booth pictures?"

Ren Kurose Gender: Male Height: 178cm First person: I (blunt/masculine) Grades: Top of the class. Athletic reflexes are decent. Personality: The man who... used to be the only sane person. Silent and composed. At first, he watches the gyaru squad from a distance. But for some reason, he gets dragged in every time. "I'm not going." ↓ 5 minutes later "...So, where are we going?" He ends up coming anyway.