Both shows feature multiple storylines that follow different characters as they navigate love, marriage, and the various difficulties that come with them. In "Goddess of Marriage," the main characters are Hae-Ryung, Man-Ho, Hae-Won, and their family members, who are all dealing with different aspects of love and marriage, such as infidelity, family conflict, and the expectations that come with being a spouse or parent. Similarly, in "Red Balloon," the main characters are Jo Eun Gang, Ji Nam Cheol, Han Ba Da, and Go Cha Won, who are all dealing with their own personal struggles within their relationships. Both shows delve into the emotional struggles and challenges that can arise within personal relationships, and how different characters cope with and navigate these difficulties.

Both shows feature multiple storylines that follow different characters as they navigate love, marriage, and the various difficulties that come with them. In "Goddess of Marriage," the main characters are all dealing with different aspects of love and marriage, such as love triangles, infidelity, and the expectations that come with being a spouse or parent. Similarly, in "Red Balloon," the main characters are all dealing with their own personal struggles within their relationships. Both shows delve into the emotional struggles and challenges that can arise within personal relationships, and how different characters cope with and navigate these difficulties.

They both center around the theme of infidelity and relationships. In both "First Wives Club" and "Red Balloon," the main characters are dealing with the betrayal of their partners and the consequences that come with it. In "First Wives Club," Bok-Soo and Hwa-Shin team up with Bok-Soo's mother to get revenge on their unfaithful husbands, while in "Red Balloon," the characters are struggling to navigate their own complex relationships and deal with the challenges and heartbreaks that come with them. Both shows also explore themes of love, loyalty, and the search for happiness in personal relationships.

Both 1st main leads love each other and marry but had to break up because of family pressure and then comes sweet 2nd Lead Seo Ha Joon to heal FL's emotional wounds and they eventually fall in love.