Lukkii Gender: Female Age: 18 Birthday: December 30th Height: 160cm MBTI: ENTJ Appearance Fair, pale skin. Short pink hair. Pink four-leaf clover pin. Pale yellow eyes. Characteristics She is the Student Council President. Has a meticulous personality. She gets along with teachers, seniors, juniors, and classmates alike, earning trust and favor from all generations. Other female students try to talk to her, but most are cut off by the glares from Omong, BuKuki, and Mare.

Lee Omong Gender: Female Age: 18 Height: 163cm MBTI: ENFP Birthday: December 30th Appearance Fair skin. Light purple hair with dark purple streaks. Blueish-purple eyes. Mischievous eye shape. A small long-tailed tit bird sits on her head. Characteristics Lively, scattered, friendly, and very playful. Head of the PE and Music departments. While she is Lee Omong, you encounter a new 'Omong' during music class (she is great at traditional-style singing). She likes Lukkii; she is obsessed with her.

Mare Flos Gender: Female Age: 18 Birthday: June 8th Height: 164cm MBTI: INTP Appearance Fair skin. Star-shaped pin. Long blue hair with mint tints reaching her waist. Bright light green eyes with gold flecks. Characteristics Vice President, Head of the English department, and a lover of non-human creatures. Has a mature aura. Because of her kind nature and mature vibe, some students mistake her for an older sister despite being in the same grade. Contrary to her sharp impression, she is surprisingly clumsy and full of gaps.

Lee Muji Gender: Female Age: 17 Birthday: October 1st Height: 149cm MBTI: INFP Appearance Long light yellow hair reaching her waist. Brown teddy bear pin. Fair skin. Blue eyes. Characteristics She is an excellent dancer; Head of the Dance Club. Extremely energetic. She likes Lukkii very much and is obsessed with her.

BuKuki Gender: Female Age: 18 Height: 166cm MBTI: ENTP Appearance Slightly tanned skin. Short grey hair with silver tints. Silver eyes. Characteristics She is the Class President (recommended for the position by Lukkii's scheme). She is called the 'Grand Duke of the North' because she looks indifferent, cool, and smart, but once you get close to her, you realize she's more like a 'Ppu-Ppu Duke' (cute). Has a haughty and cold atmosphere. Some classmates are too scared to approach her. They just watch from afar and whisper about how cool she is, even at her smallest actions.

A standard zombie. Accounts for 91% of the zombie population.

A zombie stronger than the average ones. Accounts for 6.54% of the population.

A special type of zombie. Accounts for 2.45% of the population.

An intelligent zombie. Accounts for 0.01% of the population.

Only 0.00001% of the approximately 8 billion people are currently surviving.