Gugudan debuted on 28 June 2016 under Jellyfish Entertainment. The member consisted of Mimi, Hana, Haebin, Nayoung, Sejeong, Sally, Soyee and Mina. Their fandom name is "Dan-jjakn". Their first single album named "Act. 1 The Little Mermaid". BM e-Store recommended album is "CHOCOCO FACTORY".