Black Valentine's Day belongs to the Valentine's Day of single aristocrats. April 14 every year. According to tradition, single men and women will eat Zhajiang noodles mixed with black sauce on this day, hence the name Black Valentine's Day.

On Black Valentine's Day, people who plan to celebrate the festival will let themselves live in a 100% black world, wear black suits, hats and shoes, eat noodles made of black beans, drink coffee without cream and enjoy the bitterness of black coffee.