In April 2004, she won the Junior World Championships again after defeating Bianca Del Carretto 15–14 in the final. She reached the quarter-finals in the senior European Championships in Copenhagen. She qualified for the 2004 Summer Olympics by earning a silver medal at the zonal qualifying tournament in Ghent, seeing off top-seed Sophie Lamon of Switzerland in the table of 16, but losing in the final to Sonja Tol of the Netherlands. For her Olympic début in Athens Brânză managed to beat experienced fencer Adrienn Hormay of Hungary, but stumbled in the table of 16 against China's Zhang Li and finished 16th. She later explained she felt overwhelmed by the Olympic experience and like a child lost amongst big-name athletes.