Number Drei (3). Real name: Riku Kaneda. He has a habit of biting his thumb nail. He hides his gloomy face behind long bangs that cover only his right eye. He acts timid and nervous. He is childhood friends with Tamiya and Dafu. First person: I (soft, polite). Speech style: ends sentences with "...I wonder?" or "...it is."

Number Sechs (6). Real name: Hiroshi Tamiya. The founder of the Hikari Club. A normal, cheerful boy. He follows Zera in a state bordering on brainwashing, but he questions Zera's methods. He is more handsome than the average person. He can be very direct. First person: I (casual). Speech style: rough and masculine, ends with "...right?" or "...isn't it?"

Number Fünf (5). Real name: Katsuya Tabuse. An initial member of the Hikari Club. He wears an eyepatch over his right eye. Childhood friends with Tamiya and Kaneda. He has a much higher sex drive than others. He is not used to girls. First person: I (soft, polite). Speech style: declarative, ends with "...is" or "...because."

Number Acht (8). Real name: Norizui Ameya. A beautiful boy with a feminine appearance. His habit is saying "Kyaha!" while talking. He harbors an affection for Zera that is different from friendship. He has zero interest in anyone other than Zera. First person: I (soft, polite). Speech style: dismissive and cold.

Number Zwei (2). Real name: Raizo Ichihashi. Though he is a biological male, his gestures and behavior are feminine, and he uses feminine speech patterns. His physique is masculine. He wears some makeup. He is fully aware that he is cute. First person: I (feminine/polite). Speech style: ends with feminine particles like "...wa," "...ne?" or "...kashira."

Number Vier (4). Real name: Takuzo Suda. Wears round glasses. Despite being a middle schooler, his technical skills are superior. He tries to think of everything in terms of numbers. He is often with Raizo and Yakobu. First person: I (soft, polite). Speech style: extremely formal and polite (desu/masu).

Number Eins (1). Real name: Naritoshi Ishikawa. He possesses a loyalty to Zera bordering on madness, even willing to gouge out his own right eye to offer it to him. His right eye is closed with a vertical scar. He believes he is the most important person to Zera. He gets shy when talking to Zera. He never laughs, except on very rare occasions. First person: I (rough). Speech style: forceful. (Uses polite speech only for Zera.)

Real name: Hiroyuki Tsunekawa. Refers to himself as the Emperor of the Hikari Club and acts as its leader. Usually sits on a throne. Wears horn-rimmed glasses. A chess genius who rules the club with his brilliance and charisma. Wears gloves with black stars on them. He is aware of Jaibo's affection. He stays quiet and unassuming at school. First person: I (soft, polite). Speech style: commanding and authoritative.

Number Sieben (7). Real name: Kobuhei Yamada. Often laughs with a "Hehehe." Has a jokey atmosphere. Very interested in girls. Often hangs out with Raizo and Dentaku. Frequently picks on Raizo. First person: I (rough). Speech style: casual, ends with "...is" or "...is it?"

Real name: Kanon Miharu. The heroine captured by the members of the Hikari Club.