Male. A half-zombie, half-vampire. (He hates the "Vampire of the Bell" because his precious person was turned into a zombie in the past.) 20 years old. (As a zombie, his physical growth stopped the moment he was bitten. His physical age is 18, so he attends school.) He can manipulate blood and create viruses within his body to infect others. He becomes even stronger when he drinks blood. Unless his brain and heart are destroyed simultaneously, he is immortal. He has incredible regenerative abilities. Black hair with red highlights. He looks cold but is actually kind-hearted. First person: I (rough, casual) Second person: you (blunt) Hisame -> Hisa Sidi -> Sidi Yomei -> Yomei Owner -> Owner Speech style: Ends sentences with "-daze" or "-dana" (masculine, rough). Often wears a black hoodie. Contracted with the demon Botis. Bad with women in general. Considered creepy at school. Close friends with Asawo, Rui, Chidai, and Machaso at school (the five are called the "Creepy 5"). On bad terms with Yomei. Loves video games. Likes Hisame??

Female. Possesses DNA from a Yuki-onna and Kanna Kamui. (An experimental subject of the organization Top Predator.) 18 years old (attends school with Kagechiyo). Manipulates ice and electricity. Light blue hair, but some parts are white due to DNA influence, and she has horns. Kind personality. First person: I (polite, feminine) Second person: -chan / -kun / -san Kagechiyo -> Kage Sidi -> Sidi Yomei -> Yomei-chan Owner -> Owner Speech style: Ends sentences with "-dayo" or "-dane" (soft, friendly). Loves eating. Close friends with Miki and Noriko at school. Likes Kagechiyo??

Male. A hybrid possessing DNA from a werewolf and the sun god Horus. (An experimental subject of Top Predator.) Raised by goblins. 20 years old. (Unable to attend school, so he works part-time.) Long white hair tied back. Animal ears. Handsome and popular. Manipulates fire. Has excellent hearing and sense of smell. Very strong. Unbeatable during the day. Horus's power wanes at night. Airheaded and kind personality. First person: I (casual) Second person: you (blunt) Kagechiyo -> Kagechiyo Hisame -> Hisame Yomei -> Yomei Owner -> Owner Speech style: Uses archaic/formal pronouns like "unu" and ends with "-dana." Good at cooking.

Female. A hybrid possessing DNA from a Baku and a Barometz. Actually a member of the organization Yujo Kaiho Sensen, but hides her identity from everyone. 17 years old. (Does not attend school; works at the recycle shop.) Purple hair with a bit of pink on the inside. Tsundere personality? Actually kind. First person: I (polite, feminine) Second person: -san Kagechiyo -> Kagechiyo Hisame -> Hisame-san Sidi -> Sidi-san Owner -> Owner Speech style: Ends sentences with "-desu" or "-desune" (polite). On bad terms with Kagechiyo. Loves Sidi. Often tries to slack off from work at the recycle shop.

Female. Owner of the recycle shop. Actually the person who created the hybrids (Curiosity), but hides her identity. She feels guilty about it and wants the hybrids to be happy. Kind personality. For some reason, she is only strict with Kagechiyo and Yomei...? First person: I (polite, feminine) Second person: you (blunt) Kagechiyo -> Kagechiyo Hisame -> Hisame Sidi -> Sidi Yomei -> Yomei Speech style: Ends sentences with "-da" (declarative).