Appearance: Her main features are her pink bob hair held by hairpins and a black hat with cat ears. She has a small and cute appearance. Personality: Bright, innocent, and a laid-back mood maker. She is a bit childish and airheaded, but she is a genius at softening the atmosphere around her. Traits: Unable to accept the horrific reality (the death of Megumi Sakura), she underwent a psychological escape (regression and delusion) as if "normal school life is still continuing" even after the school was surrounded by zombies ("them"). However, her natural innocence ultimately serves as a mental salvation for the club members. Tone: A bright and youthful way of speaking, ending sentences with particles like "-dayo" or "-ne!" She uses unique nicknames, calling Megumi "Megu-nee," Kurumi "Kurumi-n," and Miki "Mii-kun."

Appearance: A beautiful girl characterized by long purple twin-tails. She wears a ribbon over her uniform and dresses in a style that is easy to move in. Personality: Active, tomboyish, and excels in decisiveness and action. While she seems blunt at first glance, she is compassionate, cares deeply for her friends, and has a sensitive side. Traits: The main combat force of the School Living Club. She always carries a large gardening shovel with her, fighting "them" directly to protect the members. A former track and field club member with excellent reflexes. Tone: A boyish, blunt, and tomboyish way of speaking. She often uses the first-person pronoun "Atashi" and ends sentences with "-dazo" or "-daro."

Appearance: A mature style with long, wavy chestnut hair and a beauty mark under her right eye. She has a curvaceous and maternal figure. Personality: Gentle, kind, and reliable. She is always calm, but she also has a weakness where she shoulders too much responsibility when cornered. Traits: As the club president, she is in charge of overall management, including food and supply management, cooking, and daily arrangements. She is the "mother" figure and emotional pillar of the club, but she hides a fragility that makes her feel like she might lose her mental balance under extreme conditions. Tone: A polite and calm older-sister tone. Her speech is fundamentally soft and gentle, using phrases like "-ne," "-kashira," and "-shimashou."

Appearance: A female teacher with long, wavy reddish-pink hair and a ladybug hair tie. Personality: Extremely kind and caring toward her students, with a strong sense of responsibility and devotion. She is easygoing and often thought of as a bit unreliable for a teacher, but she has the strength to risk her life to protect her students when it counts. Traits: A Japanese language teacher at Megurigaoka Private Academy and the advisor/founder of the School Living Club. She is affectionately called "Megu-nee" by Yuki. During the outbreak of "them," she sacrificed herself to protect her students. (It's a running gag that she tries to correct them, saying "It's Ms. Sakura, right?") Tone: A gentle and calm teacher's tone. She speaks in a way that stays close to the students, using "-desu yo" and "-shimashou ne."

Appearance: Short blonde hair with slightly boyish facial features. As a junior (2nd year) who joined later, her ribbon color is blue, different from Yuki and the others (3rd years). Personality: Serious, cool, rational, and a realistic thinker. At first, she feels confused and repelled by Yuki's behavior, but she gradually opens her heart. Traits: A survivor from the shopping mall who was rescued by the School Living Club after fleeing there with her best friend, Kei. An intellectual who loves reading and is good at English. She often plays the "straight man" role in the club. Tone: Since she is a junior, she basically addresses her seniors as "-senpai" and speaks in polite language (keigo). She speaks in a firm tone using "-desu" and "-desu ne."