Three couples are from Arshan City, Xing'an League, Inner Mongolia Autonomous Region. In recent years, as one of the first pilot counties and cities for marriage customs reform, the local area has been committed to building a new marriage culture.

The concept of marriage between three couples from different generations is also constantly changing. The most difficult period came when one's own willpower and mutual encouragement came into play. The source of happiness is from the mutual tolerance and mutual support and understanding of two people.