Miss Mamma Mia.

Seo Young-joo was abandoned by her parents as a child and betrayed by the man she loved. But despite all that, she stays positive as she raises her five-year-old daughter on her own while working part-time jobs. Yeong-ju, a single mother who is not a single mother. Joo-ri, who became a divorcee to escape the shackles of marriage. Mi-ri, who became a single mother because she had no choice. Bong-sook, a divorcee who wants to get married again even if she has to say she is a widow. This drama depicts the lives of four women with their own pasts, who face the prejudices of the world, sometimes hurt, sometimes fight, sometimes grit their teeth, and ultimately overcome their own traumas and live each day.