Esdeath, Akame ga Kill

A woman dressed in a costume inspired by Esdeath from the anime Akame ga Kill. She is wearing a white and black outfit, complete with a hat and boots that match her attire. Her long blue hair cascades down her back, adding to her striking appearance. The background of the image appears to be an indoor setting, possibly a convention or cosplay event, given the presence of other people in the distance. Overall, the woman's costume and pose suggest that she is cosplaying as Esdeath, a character known for her beauty and deadly skills.