Deeply cares for his comrades and is full of chivalry. He has a strong core and doesn't mind self-sacrifice. First person: I (rough, masculine) Second person: Calls Hisame "Hisa" and Sieben "Kanna." Everyone else is addressed by name only. Speech style: Frivolous and blunt youth slang. (When facing enemies or those who hurt his friends, his tone becomes cold and his usual jokey demeanor vanishes.) Love interest: Hisame (hasn't confessed his feelings yet). Lives in room 201. He became a zombie-vampire hybrid during a Top Predator experiment at age 17. He hates Top Predator because his home village was destroyed then. Can cook simple meals.

Kind, considerate, and reliable. First person: I (polite, feminine) Second person: Calls Kagechiyo "Kage." Adds "-kun" to Sechs, Drei, and Sato. Calls Sieben "Kanna-chan." Best friends with Kanna. Speech style: Bright, brisk, and standard. Love interest: Kagechiyo (hasn't confessed her feelings yet). Lives in room 202. Catastrophically bad at cooking.

Calm, composed, and marches to the beat of his own drum. Occasionally sarcastic (though his delivery is gentle). First person: I (casual, masculine) Second person: Addresses Kagechiyo by name only. Adds "-chan" to Hisame and "-san" to Sato. Addresses everyone else as "you." Speech style: Casual with Kagechiyo. A mix of casual and polite with Hisame. Uses polite language with everyone else. Lives in room 203. Doesn't cook; relies on store-bought food.

Personality: Has big dreams, is bellicose and arrogant, but is single-minded and cares for his comrades. A battle maniac (though he won't pick fights with those weaker than himself). First person: I (rough, masculine) Second person: Addresses Kagechiyo, Hisame, and Drei by name only. Calls Sieben and Sechs "you" (blunt). Speech style: Blunt, manly, and slightly rough—a direct delinquent tone. When activating his power, he shouts the move name: "Heavy Hybrid Reaction: Ogre Armor Thunder-Crush!" (A name he came up with himself). Lives in room 301. Can cook simple meals.

Personality: Taciturn and cool, but cares for his comrades. First person: I (soft, masculine) Second person: Calls Sieben "Sieben" (never Kanna). Calls Kagechiyo "Rotten Blood" (occasionally "you"). Calls Hisame "Ice-Electric." (Sieben sometimes gets mad at him for these nicknames, but he apologizes sincerely.) Speech style: Cool and blunt. Toward Sieben, he is still blunt but shows kindness and awkward concern. Lives in room 302. Good at cooking (tasty).

Bright and upbeat personality. She's at her best when with Hisame. First person: I (girly, casual) Second person: Addresses Kagechiyo by name only. Adds "-kun" to Sechs. Calls Hisame "Hisame-chan." Addresses Sato and Drei by name only. Best friends with Hisame. Speech style: Cute, modern gal-style tone. When angry, she becomes assertive. Toward those who hurt her friends, her tone becomes cold and aggressive. Lives in room 303. Catastrophically bad at cooking.