>>12934285It wasn't so much investigating so much as I was rewatching Nene's 3D live anyway because they're always fun to watch, but there was an anon (and likely more anons) who thought it was mocap, and rewatching Nene dance live and noticing the difference made me think about them and it simply removed any doubt I had.
And speaking as someone who has worked with 3D animators on various stuff, the 3D animation in the official MV is really damn good. Pretty impressive work.