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.
Hyeon-joon, who transferred to Gwangsanggo, meets Jin-won, Byeong-yeon, and Yeong-soo, who are armed with a knuckle, and forms to be the fourth musketeer. As the Four Musketeers continued their fearless moves, the rest of them showed up one by one. Face it! The unprecedented and ignorant youth tournament begins!
