Li Yonglan received a call at the age of 29, and it was a voice that was both familiar and unfamiliar - it turned out to be her first love, Li Xinyue. Lan was invited to be Xinyue's bridesmaid. Although Lan hesitated, she accepted Xinyue's invitation. On the night before the wedding, Lan looked at Xinyue's back and recalled the ambiguous yet real relationship they had during their high school years. In 2001, both were top students attending a prestigious all-girls school in Hong Kong. They wandered under the statue of Mary every day, but due to the gender confusion of adolescence, they developed a relationship that was hard to define as either friendship or love. Their first crush, their first holding hands, their first kiss. Later, the irony of love was that while they managed external pressures, they couldn't escape internal pressures. The differences between reality and ideals forced them to pursue different futures. In university, one chased dreams while the other succumbed to reality after her father's death. The regret of this relationship was that one defined it as love, while the other summarized it as growth. This cruel wedding brought them closer once again. Lan held Xinyue's hand and walked down the aisle under the gaze of others, giving her beloved self to her current love. Is this path a confession to youth or a farewell?