This is the umbra witch uniform from the first Bayonetta game, as specified here. Currently still needs the hair curtains on her arms.
Note that this is only a costume. Look elsewhere if you want Bayonetta's beehive hairdo.
The costume supports a settings file:
;0 = behind back
;1 = on legs
;2 = on his legs
;3 = handjob
;4 = loose