A phone call takes two young men a trip down the memory lane. Two boys and one girl, a classic teenage love triangle. Being best friends, Chung has always been the humble guardian angel for the young couple Yao and Shan. “My virginity will only be dedicated to the one I love” is the motto of Chung. The three remains close friends when they grow up, until the death of Shan breaks the harmonious relationship among them.