White Day is celebrated on March 14, one month after Valentine's Day. It originated in Japan in the late 1970s as a day for men to reciprocate gifts given to them by women on Valentine's Day. Traditionally, men give chocolates, candies, or other gifts to express their appreciation. The name "White Day" comes from the color of the gifts, often white chocolate or marshmallows. Over the years, the celebration has spread to other countries, including South Korea and Taiwan, where similar customs are observed. It emphasizes the importance of mutual affection and gratitude in romantic relationships.