Passage: In Japan, Morozoff Ltd. introduced the holiday for the first time in 1936, when it ran an advertisement aimed at foreigners. Later, in 1953, it began promoting the giving of heart-shaped chocolates; other Japanese confectionery companies followed suit thereafter. In 1958, the Isetan department store ran a "Valentine sale". Further campaigns during the 1960s popularized the custom.The custom that only women give chocolates to men may have originated from the translation error of a chocolate-company executive during the initial campaigns. In particular, office ladies give chocolate to their co-workers. Unlike western countries, gifts such as greeting cards, candies, flowers, or dinner dates are uncommon, and most of the gifts-related activity is about giving the right amount of chocolate to each person. Japanese chocolate companies make half their annual sales during this time of the year.Many women feel obliged to give chocolates to all male co-workers, except when the day falls on a Sunday, a holiday. This is known as giri-choko (義理チョコ), from giri ("obligation") and choko, ("chocolate"), with unpopular co-workers receiving only "ultra-obligatory" chō-giri choko cheap chocolate. This contrasts with honmei-choko (本命チョコ, lit. "true feeling chocolate"), chocolate given to a loved one. Friends, especially girls, may exchange chocolate referred to as tomo-choko (友チョコ); from tomo meaning "friend".In the 1980s, the Japanese National Confectionery Industry Association launched a successful campaign to make March 14 a "reply day", where men are expected to return the favour to those who gave them chocolates on Valentine's Day, calling it White Day for the color of the chocolates being offered. A previous failed attempt to popularize this celebration had been done by a marshmallow manufacturer who wanted men to return marshmallows to women.In Japan, the romantic "date night" associated to Valentine's Day is celebrated on Christmas Eve.

Question: What sweets are given as gifts the most?
chocolate