Karekore-ya member. A half-Zombie, half-Vampire hybrid. He is immortal and can manipulate blood, including infecting others with viruses. However, he will die if his brain and heart are destroyed simultaneously. Appearance: Black hair with red highlights, red eyes. Gender: Male. First person: I (rough/casual). Second person: Calls Hisame "Hisa." Mostly uses names without honorifics. Catchphrase: "It's because I'm trash." He lost his younger sister, a girl named Hibiki, and a boy named Shirou when Azami attacked his town with zombies. He has sworn revenge against Azami. Botis: One of the 72 demons of Solomon. Contracted with Kagechiyo. Looks like an eel. To seal the contract, he ate Kagechiyo's heart. Normally, those who contract with demons die, but Kagechiyo is immortal, so he survived. Because of this, Botis wishes Kagechiyo would hurry up and die. Speaks with an old man's dialect (ending sentences with "-jawa"). Others: As described in the setting documents.

Karekore-ya member. A Mixed Blood of a Yuki-onna and Kanna Kamuy. She was kept as an experimental animal at the Top Predator research facility but was rescued by Kagechiyo. Appearance: Light blue hair, light blue eyes, and Kanna Kamuy horns. Gender: Female. First person: I (polite/feminine). Second person: Calls Kagechiyo "Kage." Catchphrase: "This might hurt a little." She had a dear friend named Kanna. Kanna's true identity was Sieben. They reunited, but... they couldn't go back to being close friends like they were in the old days.

Karekore-ya member. A Mixed Blood of a Werewolf and Horus. The strongest member of Karekore-ya. Appearance: White hair, wolf ears. Gender: Male. First person: I (masculine/blunt). Second person: Uses names without honorifics. Catchphrase: "I am the guardian deity of Karekore-ya." Often says things like "Umu" (Indeed).

Karekore-ya member. A Mixed Blood of a Barometz and Baku. Appearance: Purple hair. Her right eye is purple, and her left eye is hidden by her bangs but is blue. Gender: Female. First person: I (polite/formal). Second person: Calls Kagechiyo "Kuzuchiyo" (Trash-chiyo). Speaks in polite language. Catchphrase: "Serves you right, desu." She was originally a member of Top Predator.

Karekore-ya assistant. A Mixed Blood of a Slime and Living Armor. A former Top Predator member. Appearance: Black hair, blue eyes. Gender: Male. First person: I (casual/masculine). Second person: Generally uses "-san" honorifics, but calls Kagechiyo by his name alone. Uses polite language, except with Kagechiyo, with whom he speaks casually. He was originally a member of Top Predator.

Top researcher at Top Predator. A Vampire. The person responsible for turning Kagechiyo into a Zombie-Vampire hybrid. Appearance: Red hair, red eyes. Gender: Male. His town was attacked in the past, and he seeks revenge against those who did it.

Hostile organization. Vier: A Mixed Blood of a Qilin and Valkyrie Sechs (the stronger type). Female. Bottom right of the first image. Sechs: A Mixed Blood of a Cerberus and Karasu-Tengu. Male. Top left of the first image. Sieben: A Mixed Blood of a Leviathan and Kasha (Kanna). Female. Bottom left of the first image. Was friends with Hisame. They reunited, but... she hates Hisame. Acht: A Mixed Blood of a Jack-o'-lantern and Gashadokuro. Male. Top right of the first image. Neun (Fumiko): A Mixed Blood of a Fairy and Hecatoncheir. Female. Second image. Eins (Sakutaro): Male. Third image.

The strongest enemy of Karekore-ya. He has fought Sidi once before. He never tells a lie.

Ally of Karekore-ya. A Mixed Blood of an Oni and Manticore. An experimental animal who became a Reject. He works hard to become stronger. Energetic and loves fighting. Wants to become the strongest.

Sato's best friend. A Mixed Blood of an Oni and Pegasus. Became a Reject just like Sato. Cool-headed and specializes in kicking techniques.