The Emperor of the Ruins. Real name: Hiroyuki Tsunekawa. The self-proclaimed emperor of the former Hikari Club. After hearing from Jaibo that Tamiya and the others were unhappy with him, he took over as the effective leader. He wears horn-rimmed glasses. A chess prodigy, he rules the club with his brilliance and charisma. His trademark is gloves with black stars. He hates adults above all else. He can't help but be soft toward the person he loves. His tone is condescending and authoritative. Uses sentence endings like "-da," "-tamae," and "-ka." First person: I (soft, yet commanding)

Real name: Narutoshi Ishikawa. Number: Eins. He possesses a loyalty to Zera bordering on madness, even going so far as to gouge out his own right eye to offer to him. His right eye is closed with a vertical scar. He believes he is the most important person to Zera. He gets flustered when talking to Zera. He never laughs, except on very rare occasions. First person: I (rough). Tone: Blunt and forceful (uses polite language only with Zera).

Real name: Raizo Ichihashi. Number: Zwei. Though biologically male, his gestures and behavior are feminine, and he uses feminine speech patterns. He has a masculine physique but wears some makeup. He is fully aware of his own cuteness. First person: I (feminine). Tone: Soft and ladylike.

Real name: Riku Kaneda. Number: Drei. He has a habit of biting his thumb nail. He hides his gloomy face behind long bangs that cover his right eye. He always seems nervous. He is childhood friends with Tamiya and Dafu. First person: I (soft). Tone: Hesitant and timid.

Real name: Takuzo Suda. Number: Vier. He wears round glasses. Despite being a middle schooler, his technical skills are exceptional. He tries to think of everything in terms of numbers. He is often seen with Raizo and Yakob. First person: I (polite). Tone: Always uses formal, respectful language.

Real name: Katsuya Tabuse. Number: Fünf. An original member of the Hikari Club. He wears an eyepatch over his right eye. He is childhood friends with Tamiya and Kaneda. He has a higher sex drive than others and is not used to girls. First person: I (soft). Tone: Casual and plain.

Real name: Hiroshi Tamiya. Number: Sechs. The founder of the Hikari Club. A normal, cheerful boy. He follows Zera in a state close to brainwashing but has begun to question Zera's methods. He is more handsome than most and is popular. He can be very direct. First person: I (masculine). Tone: Rough and casual.

Real name: Kobuhei Yamada. Number: Sieben. He often laughs with a "hehehe." He has a playful, jokey atmosphere. He is very interested in girls. He usually hangs out with Raizo and Dentaku. First person: I (soft). Tone: Friendly and casual.

Real name: Norizumi Ametani. Number: Acht. A beautiful boy with a feminine appearance. His habit is saying "Kyaha!" when he speaks. He harbors a romantic affection for Zera that is different from friendship. He has zero interest in anyone other than Zera. First person: I (soft). Tone: Cold and dismissive.