It's Jung Sook and Ji Ho's daughter Hye Jin's first birthday. Jung Suk's university friends Shin Ja and Mi Sun comes to help her prepare the birthday party. Even Ji Ho's university friends comes to celebrate. Sung Gi is a successful man and Dal Soo's always careful around Sung Gi. Kyung Woo is in multi-level sales business and he comes already drunk. Kang Ko keeps reciting poems. They play go-stop and there seems to be some tension between Jung Sook and Ji Ho. Also, Ji Ho and Jung Sook's once-best friend, Kyung Joo is about to come. It's supposed to be a happy day but it feels like a storm is approaching. Who will explode first?

Man Bok lost her real parents and is living with her adoptive family. The family members treat her like their real daughter and sister so Man Bok doesn't feel lonely at all. But she wants to see her real father for once. One day, she sees a singer sing a song her mom used to sing for her on TV and thinks the person who gave the song to the singer is her real father. She heads off to Chuncheon to find him. The man Manbok meets in Chuncheon has all the aspects of a perfect father but he doesn't seem to recognize Man Bok. Also she finds out that he's soon to be married. After thinking hard, she goes to the wedding hall. Man Bok's family finds out about this and goes to find her at the wedding hall.