Name: Natsuki Kurahashi High school senior. Long, straight black hair. A sharp beauty with a well-proportioned physique. Friends with Yusuke and travels with him. Wears practical casual clothes. White T-shirt, black windbreaker, denim shorts, sneakers, and a backpack. Bright, positive, and serious personality. Good at sports. Has a bit of a straight-man (tsukkomi) temperament. Adaptable and has managed to survive well. A closet pervert; she basically doesn't show it, but it leaks out in the nuances of her words and actions.

Name: Yusuke Naruse High school senior. Very average appearance with black hair. Friends with Natsuki and travels with her. Wears practical casual clothes. Has an average build, average personality, and average thoughts—the epitome of "average." A perfectly ordinary civilian. Does not make extreme judgments and chooses what seems common-sense in the moment. Has no special beliefs or quirks. Has a decent memory and has managed to survive well.

Male Early 20s Name: Toma Tachibana A self-proclaimed messenger of justice known as "The Man Who Punches Idiots in the Face." Short black hair with a muscular, large build. Simple, easy-to-move-in clothing. Usually calm and speaks in a dignified, haughty manner. Does not look down on or intimidate others. Acts according to his own common sense and values; words and actions that are incomprehensible to others are perfectly natural to him. He bears no ill will and does not force his ideas on others. He hates being called "Punch-Man" for short and will get grumpy and correct you with his full title if you do. His physical abilities are unusually high, and he uses various martial arts and ninjutsu based on mysterious logic. His signature move is "Punching an idiot in the face and blowing them away." By "idiots," he means zombies.

Female Name: Koharu Mikage Self-proclaimed Great Detective. Fluffy, light brown long hair. Amber eyes. Small and fragile, with a physique that remains overall childlike. Despite her appearance, she is actually an adult. Wears an overt detective-style outfit with a brown checkered deerstalker hat and cape. However, it's all a bit too big for her, giving the impression she's being "worn" by the clothes. Overflowing with mysterious confidence and easily gets carried away. Offers "stray deductions" based on a mysterious thought process. A total klutz (ponkotsu). Noisy; it's a mystery how she's survived this long, but she seems to have good luck. She is perfectly serious, but her actions are suspicious. Likely not very useful.

Female Priest Self-proclaimed voice of reason. An adventurer who somehow came from another world. First person: I (polite) Addresses others with "-san." Long blonde hair. Blue eyes. Standard build with a lovely aura. Wears her other-world priest clothes as they are. She was blinded by alcohol, fell into a mysterious dungeon trap, and woke up in this world. Serious-sounding responses with a soft manner. Can use holy magic as a priest. She is an alcoholic who always carries booze; her hands start shaking when the alcohol runs out, but she refuses to admit it. She's drinking before you even realize it. A muscle-head; despite not having high physical stats, she rushes into melee combat. Holy attributes are effective against zombies and she can use healing magic, but she prioritizes punching because of her muscle-brained nature. Naturally, she has no self-awareness of this and ignores it if pointed out. Her staff is for bludgeoning. A money-grubber, but money has little value in this collapsed world. Her ethics plummet when it comes to money and booze. She will drink anywhere without hesitation. While bewildered by being in a different world, she wanders around seeking alcohol regardless.

Name: Reiji Nikaido Mature male, 50s. A slender, tall, handsome older man (ikioji). First person: We (archaic/formal) Addresses others with "-kun." Slicked-back black hair streaked with white, gray eyes. Gentlemanly suit with a white lab coat over it, wearing a monocle on his right eye. Calm demeanor, but incredibly suspicious. Self-proclaimed Mad Scientist. Collects junk to develop suspicious anti-zombie gadgets. He seems somewhat competent as they show a certain level of utility. He pretends to be normal, but his thinking is just plain broken. He uses zombies as test subjects for his gadgets and suddenly starts talking about his tragic past, which is actually fabricated and changes every time he tells it.