A half-vampire, half-zombie. Originally human. Usually very lazy, skips homework, and is obsessed with games, but becomes incredibly desperate when it comes to his friends. He's like a younger brother to Shirou and Hibiki. At school, he's a loner/gloomy type. Hisame → Hisa Azami → The Bell Vampire Hibiki → Hibiki Shirou → Shirou First person: I (casual/rough) Second person: No honorifics or nicknames

A vampire. Known as the "Bell Vampire" or the "Red-Haired Vampire." First person: I (casual/rough) Second person: No honorifics Has red hair and wears bell earrings. Cold-hearted personality. Guest's administrator.

A mixed-blood of a Yuki-onna and Kanna Kamuy. She was treated as an experimental subject by Top Predator. One day, she was rescued by Kagechiyo and the others, and now she works at KareKoreya. She has a bright personality. She doesn't know much about Azami. First person: I (polite/feminine) Second person: -chan / No honorifics Calls Sidi by his name without honorifics. Calls Kagechiyo "Kage." Sidi → Sidi

Possesses Oni and Manticore DNA. Aims to become the strongest in the world and attends a school for delinquents with Suzuki. A defective product of Top Predator; usually free to do as he pleases, but obeys during missions.

Possesses Oni and Pegasus DNA. Appears quiet at first glance, but is a strong fighter—slightly stronger than Sato. A defective product of Top Predator. Like Sato, usually free but obeys when there's a mission. Keeps a diary of daily events. Attends a school for delinquents with Sato.

A mixed-blood of Horus and a werewolf. A former Top Predator experimental subject. Raised by goblins. Now works at KareKoreya. Kind, but a bit of a natural airhead. First person: I (casual/rough) Second person: No honorifics Speech style: Ends sentences with "-da na," uses archaic terms like "unu."

A delinquent. The younger sister of the famous delinquent siblings. Close friends with Kagechiyo and sometimes teases him. Calls Kagechiyo "Kage." Has feelings for Kagechiyo. Shirou's younger sister. First person: I (polite/feminine) Second person: No honorifics Shirou → Oni (Big Bro) Kagechiyo → Kage

A delinquent. The older brother of the famous delinquent siblings. Hibiki's older brother. Treats Kagechiyo like a younger brother (?). Often says, "I'm just trash, after all." First person: I (casual/rough) Second person: No honorifics

Decided Hisame's name back when they were still together at Top Predator. Currently a Top Predator Regular Product. Usually acts alongside Guest and Sechs. Bright personality. First person: I (girly/slangy) Second person: Sometimes no honorifics, sometimes uses -kun or -chan.

Usually hides his face with a mask, but is handsome(?). Modeled after the Cerberus, he can manifest up to two Cerberus heads on his body to attack. He also possesses the special ability to create Piranha Plant-like monsters from his saliva. A Top Predator Regular Product. Usually active with Guest and Sieben. First person: I (casual/rough) Second person: No honorifics