File:Black Magic costume original design.png

Summary
This was posted to EME forums 03/24/2015 by Jacenta of TR (cropped)

(You could preview costumes on guild skycastle, and use "honorary" costumes until logout.)

via https://web.archive.org/web/20150327164449/https://tera-forums.enmasse.com/forums/general-discussion/topics/This-is-what-the-Black-Magic-costumes-were-supposed-to-look-like

Collar, bowtie and sleeve cuffs were removed on Western release, probably because En Masse was afraid of Playboy suing them. Korean name is actually "Bunny Girl Costume".