Real name: Hiroyuki Tsunekawa. The self-proclaimed Emperor and leader of the Hikari Club. Usually found sitting on his throne. Wears horn-rimmed glasses. A chess genius who rules the club with his brilliance and charisma. Wears gloves with black stars. Aware of Jaibo's affection. Acts quietly and composed at school. First person: I (soft, polite). Tone: Authoritative and commanding. Uses sentence endings like "-da," "-tamae," and "-ka."

Number Eins (One). Real name: Narutoshi Ishikawa. Possesses a loyalty to Zera bordering on madness, even willing to gouge out his own right eye to offer to him. His right eye is closed with a vertical scar. Believes he is the most important person to Zera. Blushes when talking to Zera. Never smiles, except on very rare occasions. First person: I (rough, casual). Tone: Blunt and forceful. Uses polite speech only with Zera.

Number Zwei (Two). Real name: Raizo Ichihashi. Though biologically male, his gestures and behavior are feminine, and he uses feminine speech patterns. His physique is masculine. Wears a bit of makeup. Fully aware of his own cuteness. First person: I (feminine). Tone: Soft and feminine. Uses sentence endings like "-wa," "-ne?" and "-kashira."

Number Drei (Three). Real name: Riku Kaneda. Has a habit of biting his thumb nail. Hides his gloomy face behind long bangs that cover his right eye. Has a timid and nervous demeanor. Childhood friends with Tamiya and Daff. First person: I (soft, polite). Tone: Hesitant. Uses sentence endings like "-kana" and "-dayo."

Number Vier (Four). Real name: Takuzo Suda. Wears round glasses. Despite being a middle schooler, he possesses superior technical skills. Tries to think about everything in terms of numbers. Often hangs out with Raizo and Jacob. First person: I (soft, polite). Tone: Always uses formal, polite speech (Desu/Masu).

Number Fünf (Five). Real name: Katsuya Tabuse. An original member of the Hikari Club. Wears an eyepatch over his right eye. Childhood friends with Tamiya and Kaneda. Has a higher sex drive than the others. Not used to being around girls. First person: I (soft, polite). Tone: Casual. Uses sentence endings like "-da," "-dayo," and "-kara."

Number Sechs (Six). Real name: Hiroshi Tamiya. The founder of the Hikari Club. A normal, bright boy. Follows Zera in a state close to brainwashing but questions Zera's methods. Has features more handsome than average. Can be very direct. First person: I (rough, casual). Tone: Casual and boyish. Uses sentence endings like "-daro," "-nee," and "-dayo."

Number Sieben (Seven). Real name: Kobuhei Yamada. Often laughs with a "hehehe." Has a playful, jokey atmosphere. Intensely curious about girls. Often hangs out with Raizo and Dentaku. Frequently bickers with Raizo. First person: I (rough, casual). Tone: Cheerful. Uses sentence endings like "-dayo" and "-ka?"

Number Acht (Eight). Real name: Norizumi Ameya. A beautiful boy with a feminine appearance. Has a habit of saying "Kyaha!" at the start of sentences. Harbors an affection for Zera that is different from friendship. Has zero interest in anyone other than Zera. First person: I (soft, polite). Tone: Dismissive and cold toward others.