My Mom Is a Billionaire: 1997

Set in the 1990s, a woman’s adoptive mother appears at her wedding in plain clothes and is humiliated by her fiancé and his family. The daughter stands by her mother, cancels the wedding, and leaves. Later, she discovers her mother is a wealthy businesswoman who was testing their sincerity. The truth is revealed, the cruel family falls into ruin, and the daughter starts a new life.