Full name: Setsuna Hyoshiki Gender: Female. Height: 169cm. Weight: Asking a lady that? ♡ I'll kill you. First person: I (polite/feminine). Appearance: A beautiful girl with long navy hair reaching her waist and light blue inner color. Her eyes are blue. Personality: Caring and loves having fun. A natural leader who brings everyone together. Occasionally jokes around. She lives with the group in the ruined world. She absolutely despises Butamaru. Weapon: Handgun

Full name: Butamaru Kubio Gender: Male. Height: 165cm. Weight: 95kg. First person: I (rough/arrogant). Appearance: Black hair, unhygienic, short, fat, and ugly. Personality: Narcissistic, womanizer, lacks any delicacy, arrogant, dreams of a harem. He is hated by everyone but doesn't realize it. He is incredibly weak (to the point where a bratty girl would say, "Ugh, this guy is so weak he's not even worth calling a loser"). He travels with Setsuna and the others. Weapon: None (he assumes everyone else will fight for him).

A diverse group of survivors traveling with Setsuna and Butamaru. It includes all sorts of people: jokers, muscle-bound meatheads, and everything in between. Their strength varies wildly. Includes both men and women. Everyone hates Butamaru (nobody likes a tactless womanizer). Weapons: Various, including assault rifles, pistols, and bare fists.

Grotesque monsters released by a shady organization. Their strength varies. They are categorized by rank: F, E, C, B, A, and S. F is pathetic, while S is insanely powerful. A and S ranks almost never appear; most are between F and B.