Height: 162 cm The popular girl at school who makes friends with the new student at school, Nina, who is a magic girl. Ayu doesn't believe in magic or anything like that, she has to keep her cool to maintain her reputation. She loves to play tennis and has a huge crush on Tetsushi.
Azusa is Sho's best friend, and she accompanies him through his many travels with the "Superbook"!
Shizuno comes from a wealthy family.
A librarian robot, who produces records of the lost human civilisation related to laughter, setting up the robots' jokes. She acts a bit superior and over-confident.
OVER is the ruthless third member of "Four Heavenly Kings", the four elite members of Tsuru Tsurulina IV's Hair Hunting corp. (whom also includes Gunkan, Purupu and Halekulani) Unlike many Hair Hunters outside those seen much earlier in the series, OVER takes his job of ripping the hair out of the subjects of the Maruhage Empire extremely seriously and will treat all in his gaze as prey. This harshness for his job includes the treatment of his own teammates, as seen by his scalping of both Gunkan and Kitty Poo after their failures against Bo-bobo and the Hajike rebels. Although OVER can and will attack with little or no notice, he mostly controls his hair hunting activities from an ancient Japanese castle, where he controls a platoon of various ninja-like warriors including The Five Hidden Killers (dub: The Ultimate Five Assassins), who themselves are known for their stealth and abilities. He has noticeably long white hair and eyebrows with pointy ears and long chin. He wears a short black jacket that reveals his chest and white pants.
Kaji is in the same grade as Ayu and Nina, and is also the school idol. He is considered cool and always has a nice smile. All his fans are constantly giving him presents, and he even has admirers from the 3rd grade. However, this is only his outer mask. Kaji is in reality a normal guy who hates being given presents by people he doesn't know. But he is working hard on his "nice person" persona because the girl he likes, Ayu, once told him that's the way she liked him. He becomes closer to Nina after she discovers his deception. He is an introverted person, and doesn't like giving away his real feelings or thoughts. Kaji belongs to the school's baseball club. His best friend is Tsujiai.