It’s simply the Korean’s way to inject some fun into life. Valentine’s Day (14 Feb), where the ladies give chocolate to the guy they admire and anxiously await the guy’s response on White Day (14 March). If the guy is also interested in the lady, he will return a gift.
Now, what happens to those who are still single? On Black Day (14 April), they get together, and supposed wear all black, and eat Jjajangmyeon or noodles with black bean sauce together with minced meat and onion! They celebrate their singlehood on this day! People who are single can be very happy too!
If you’d like to have some fun on this day, gather your friends who are single and have a jolly good time eating jjajangmyeon!