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.
One day, a dead body is found at an apartment near the supermarket. Finding this murder odd, Dae-sung, his mother, and his girlfriend Ah-hee gather around to find the real murderer, starting by looking through the receipts of the market.
Inside a national weather service, love proves just as difficult to predict as rain or shine for a diligent forecaster and her free-spirited co-worker.