In a dystopian future devastated by air pollution, the survival of humanity depends on the Black Knights — and they’re far from your average deliverymen.

After she unknowingly opens a door of chaos, 17-year-old Suzume joins forces with a young man to help prevent more calamity from befalling Japan.

About a 27-year-old lawyer with Asperger's syndrome. Due to her high IQ of 164, impressive memory, and creative thought process, the brilliant Woo Young Woo graduated at the top of her class from a prestigious law school.