Hinagiku Katsura's real name..???

hinagiku was adopted by katsura family..... so she was named after katsura family..... so her real name isn't hinagiku katsura but hinagiku something else..... i wonder what could be the name even though i do prefer hinagiku katsura..... if hata is planing to bring the parents issue then her real name might be disclosed.... hope it will be a good name