Pepero Day is an observance in South Korea similar to Valentine's Day.
Thanks to a concentrated marketing effort, Valentine's Day is celebrated in some Asian countries with Singaporeans, Chinese and South Koreans spending the most money on Valentine's gifts.
A dating agency is a business which acts as a service for matchmaking. A dating agency can be a "real" business where men and women come in person and ask a matchmaker to help them find a potential partner. It could also be an internet dating agency - a website where people register, post their profiles and contact other members of the agency.