Since the user might have a typo or it's a less-known term, perhaps I should focus on her activities around 2021. Let me look up her activities in that year. From what I remember, in recent years, she was part of Nogizaka46. Wait, was she in the 1st generation of Nogizaka46? I need to confirm. Also, I think she left Nogizaka46 in 2022, so her activities in 2021 would still be with that group.