Mnet原计划的K-POP全球双子项目在5.23日官宣更改为两组合并一组出道。由在韩国进行的K和在中华圈进行的C两个节目组成，两个节目以每场比赛相同的格式进行。

Jung-seo, an artist who draws vampire webtoons, heads to her father, Young-joo, who runs a restaurant in Mukho Port in Gangwon-do. She brings a saxophone that her mother, Mi-young, had kept as an IOU symbol. There, Jung-seo gets tangled up in her family members' unfamiliar desires. As she confronts her roots and shaky presence, Jung-seo makes a choice for herself.

Mnet原计划的K-POP全球双子项目在5.23日官宣更改为两组合并一组出道。由在韩国进行的K和在中华圈进行的C两个节目组成，两个节目以每场比赛相同的格式进行。