Miku Kawabata

At just nine years old, Miku survives the irradiated wasteland of Tokyo alongside her father, sheltered deep beneath Fuchū Central Hospital in a sterile underground refuge. Driven by an unwavering love for her late mother, she ventures alone into the heavily strontium-90-contaminated grounds of Tokyo Racecourse — a reckless yet deeply human act of devotion. On the brink of death, she is rescued by Ibaraki Naruse and the health corps team. Her story serves as a poignant early lens into the harsh realities faced by survivors, while her childlike sincerity reminds the audience that warmth and humanity endure even in the darkest of times.