Age: 22 Height: 174cm MBTI: INFJ Personality: Taciturn, struggles with expressing emotions, kind, high physical ability, considerate. He has a surprisingly honest and shy side. Clumsy but has a strong sense of responsibility. Actually likes animals. Has a high pain threshold. Airheaded. Physical Traits: Has a vivid pink sparkle-shaped scar (resembling a cross) in his right eye similar to the infected, and a vivid pink stitched scar on his right cheek from being cut by one. Always wears a black T-shirt with Heattech underneath and nikkapokka (baggy work pants). He does not wear an eyepatch. Has somewhat sleepy-looking eyes. Other: Uses a wooden sword as a weapon. Used to be an ordinary college student. He was actually bitten by an infected once and should have turned, but for some reason, it stopped at the scars on his eye and cheek. Since becoming a half-infected, his physical abilities are abnormally high. He is almost blind in his right eye. A hybrid of human and infected. Neither he nor those around him realize it yet, but he carries antibodies and will not fully turn. Reason for Isolation: Because he was bitten, and even though he hasn't turned, no one knows when he might.

Age: 23 Height: 177cm MBTI: ENTP Personality: Friendly and reckless. Talks a lot. Loves interesting things and always heads toward whatever piques his interest. Bright personality. Appears to be a free spirit but is surprisingly thoughtful and keeps the group together. Incredibly brilliant; he passed the University of Tokyo entrance exams at the top of his class. Has terrible handwriting. Physical Traits: Naturally brown hair, slightly blue eyes (apparently one-quarter foreign). Pins his bangs back with hair clips. Wears a gray hoodie open over a dark green T-shirt, with white-belted shorts. Wears goggles on his head. Has bandages wrapped around his arms and legs, presumably covering wounds from the infected. Occasionally the wounds open, and fluorescent light-blue blood flows out. Has a snaggletooth and a mole near his eye. Other: Despite his brilliance, he loved children so much he turned down the University of Tokyo to become a kindergarten teacher (because it looked fun). In this current world, he used his intellect to create a drug that prevents one from turning even if bitten. However, he is the only test subject, and the drug still has many side effects—plus it's likely tailored only to his biology, so he doesn't use it on others. It is administered via injection. Side effects include dizziness, hyperventilation, shortness of breath, and vomiting. He temporarily suffers vision loss and eye scars similar to the infected, but the infection seems to be held at bay. He fights using a bat or a crowbar. Reason for Isolation: Because he has scars from the infected all over his body.

Age: 24 Height: 180cm MBTI: ESTP Personality: Raised by wealthy parents who spoiled him, he is quite selfish and relies on others immediately. In a way, he's good at acting pampered. Since the world ended, his lack of practical skills has become glaringly obvious. He is largely useless. He is obsessed with fashion and tries to stay stylish even in this world. Has a narcissistic streak. He's a smooth talker and good at navigating social situations. He seems to live carelessly but thinks more than he lets on. Has sharp intuition. Good at talking people around, making him useful for negotiations. He can fight the infected but isn't very proactive about it. Hates chores. Actually a good guy who cares about his comrades. Physical Traits: Blond hair, long in the back, parted in the center—looks like a typical "playboy." He likes "Heisei era" fashion, wearing a long-sleeved T-shirt with a skull, a cross necklace, slim denim pants, and a red checkered shirt tied around his waist. Has drooping eyes and a relaxed expression. Very handsome. Other: Smokes frequently. Cigarettes are a luxury in this world, but as a rich kid, he never lacks them through bartering or his own means. He used to attend a famous private university on his parents' dime. He isn't very smart. Always carries a smartphone and uses it whenever he finds a faint signal. His parents are stationed overseas; he received a message saying they would come for him eventually, but the details are unknown. Reason for Isolation: He was hated by others because he refused to help at all in a world where everyone must cooperate.