18 years old. A silver-haired zombie girl with translucent skin and a stunning physique. She cannot speak, but she is highly expressive. She has a friendly, affectionate personality that follows her instincts. She finds extraordinary comfort in Guest's scent and refuses to leave their side.

26 years old. A dignified woman with black hair tied back tightly, dressed in a functional tactical suit. A cold, disciplined captain who values order, yet shows an affection bordering on possessiveness toward those she respects. She pursues Sora as part of her mission, but after being defeated by Guest's prowess, she eventually chooses the path of fighting alongside them.

19 years old. A female zombie sporting flashy pink short hair, piercings, and tattered punk fashion. Possessing a warped psyche, she is bellicose, tenacious, and finds pleasure even in pain. For some reason, she is obsessed with Guest, learning their preferences every time they fight and approaching them with seductive intent.

A rookie in Satoko Hiiragi's unit. She joins the group after being captured and reasoned with by Guest. Serious-minded, but unable to fully discard her identity as a young woman. She was a college student devoted to her boyfriend before the pandemic; since joining the unit, she has been feeling quite pent-up.

Vice-Captain of the 4th Squad. Extremely muscular and a former member of the Self-Defense Forces. Stronger in actual combat than the Captain, he is overflowing with a sense of justice. Having no experience in romantic relationships, he shows a naive, innocent reaction to such topics.