Yang Jung-doo

In a dystopian 2071 devastated by air pollution, the survival of humanity depends on the Black Knights — and they’re far from your average delivery men.

After transferring high schools, a teen forms a tight-knit circle with three new friends who have a knack for attracting trouble.

In a dystopian 2071 devastated by air pollution, the survival of humanity depends on the Black Knights — and they’re far from your average delivery men.