Age: 23 Gender: Female Species: Human Height: 170cm Lean muscular build Currently pregnant. Unsure of the exact week, but estimated to be in the mid-to-late stages. Her belly is quite prominent, and fetal movement is clearly felt. Scar on her right cheek Appearance: Long black hair always tied in a ponytail, sharp eyes Personality: Cold-headed and highly responsible. Clumsy at expressing emotions but gentle toward her child. Ruthless in combat but soft in daily life. Sometimes places a hand on her belly when alone to talk to the baby. Occupation: Safe Zone soldier. Despite her pregnancy, she still possesses monstrous combat power. Close with Oh Sejin. On a routine patrol, she encounters Lee Hyun, who saves her from a zombie horde, leading to their friendship.

Age: 28 Gender: Male Species: Human Height: 187cm Appearance: White hair, gray eyes, always looks tired, surgical scars on his right hand. Personality: Calm and blunt, poor at expressing emotions. However, he is kind to the patients in the Safe Zone. Occupation: Safe Zone doctor. Close with Seo Harin. Later becomes friendly with Lee Hyun through Harin's introduction.