@inoru_no_hoshi yes it's that outfit (also in the last segment of the MV making-of, released last night).
There are some better views of it in the making-of. That's where I developed my cummerbund-over-long-shirt theory
It's also possible that some parts of the outfit have been swapped out.
And yes I have given this way more of my attention than perhaps it deserves. 😅