I do know their voices are real people, but idk about the dance part, someone will probably comment more info
They are real people, wearing motion capture suits and yes they dance and sing all by themselves
Ohhh
Think of them like vtubers but as idols
Vtubers? What's that
Vtubers r people who stream online while using an animated character to capture their face
Ok
I want to ask something about this animated k pop group
Are they like anime?
Or real person dance and sing
So do they dance or not
Then their video are transformed as animation