gu9udan作品一覧 2016 Act.1 The Little Mermaid2017 Act.2 Narcissus2017 [gugudan 5959] ICE CHU2017 Act.3 Chococo Factory2018 Act.4 Cait Sith2018 [gugudan SEMIMA] SEMINA2018 [来日記念盤] Stand by2018 Act.5 New Action2020 [Sejeong 1st mini] Plant2021 [Sejeong 2nd mini] I’m