This is written for the youthful memories of those born in the 1970s, and is dedicated to the affectionate remembrance of the late 1990s and the early 2000s. Pagers, karaoke, karaoke stations, Internet chat rooms, boys' plaid scarves, girls' long skirts, everything is a trace of the past. This article begins with a narration of past events around an online love affair, telling the heroine's mental journey, experiencing the joys and sorrows of life, and growing from a simple and ignorant girl to a capable urban white-collar worker. The article delicately describes the beauty and twists and turns of an online relationship. The heroine's two love relationships are lamentable, and in the end the mirror becomes empty. No matter what the ending of each character in the article is, their attitude towards life is always serious and upward. The author hopes that this work can resonate with peers and pay tribute to the years when we have cried, laughed, and struggled.