O.C.C. - Crossplay

Original Character Cosplay is a genre of cosplay wherein the participants are to portray or showcase their idea of an original character design.

Crossplay, a portmanteau of crossdressing and cosplay, is cosplay in which the person dresses up as a character of a different gender. Crossplay's origins lie in the anime convention circuit, though, like cosplay, it has not remained exclusive to the genre.