Brook

Mirror World Serena

鏡の国セレナ
Mirror Serena is a character of the day who appeared in The Cave of Mirrors!. She is Serena's counterpart from the Mirror World, whose personality is opposite to that of the regular Serena, as she is arrogant and takes battling very seriously. In the original version, she speaks in a Kansai dialect. (Source: Bulbapedia)