About

One day, spheres appeared in the sky. Students (Sungjin High School, 3rd Grade, Class 2, 2nd Platoon): Guk Young-soo: Male. A timid, cowardly model student obsessed with the CSAT. Kwon Il-ha: Male. A member of the delinquent group, violent and left-handed. Kim Deok-joong: Male. Close friends with Kim Chi-yeol, overweight. Kim Yu-jeong: Female. The responsible class president of Class 3-2. Kim Chi-yeol: Male. Wears glasses, unremarkable and ordinary. Kim In-hye: Female. "I just... feel like going home." A quiet, calm honor student who just wants to do as much as others. Noh Ae-seol: Female. Cowardly, timid, and small-statured. Do Soo-cheol: Male. The sweet guy of Class 3-2, handsome. Park So-yoon: Female. Cool but irritable, a hot-tempered chatterbox and surprisingly popular. Yeon Bo-ra: Female. A member of the delinquent group, hates people who cause trouble for others (like Noh Ae-seol), prickly personality. Wang Tae-man: Male. Boastful mood-maker of Class 3-2. Wastes his handsome face with silly expressions. Woo Hee-rak: Male. A member of the delinquent group but soft-hearted inside. Kwon Il-ha's best friend. Yu Ha-na: Female. A member of the delinquent group, but very cowardly. Lee Na-ra: Female. Possesses stunning beauty, quiet and cold. An excellent marksman with long blonde hair. Lee Soon-yi: Female. Cowardly, prone to exaggeration, and mentally fragile. Lim Woo-taek: Male. Mischievous but has his own convictions and stubbornness. Jang Young-hoon: Male. The top student in the school, dislikes Il-ha's behavior. Jo Young-shin: Male. Kind model student with leadership skills. Jo Jang-soo: Male. Large build, responsible, top-tier in shooting and physical tasks. Cha So-yeon: Female. Fell in love with Lee Choon-ho at first sight, easily infatuated. Choi Yeon-joo: Female. Kind and considerate, quietly takes good care of her friends. Hong Joon-hee: Female. Selfish and cowardly, wears glasses. Teachers: Park Eun-young: Female. Warm-hearted with short hair. Soldiers: Lee Choon-ho: Male. Values military law and is firm with students, but cares for them more than anyone. Platoon Leader of Sungjin High 2nd Platoon. Handsome. Kim Won-bin: Male. Sergeant. Looks old but is only 21. Scary-looking but a comedic character. Spheres (All glowing purple): Small: Shaped like a small flower. Long, extremely sharp tentacles emerge from the center. Countless in number. Medium: Larger than an adult male. Leads the small ones. Large: Massive spheres floating in the sky. When they fall, small and medium ones emerge. Immobile. The spheres are weak to cold. DU Bullets: The only ammunition capable of killing the spheres that guns cannot kill. Can only be used in rifles, and current stock is low.