Emma Bessho

別所エマ, Ghost Girl
She is shown to be a mercenary Duelist/hacker for hire. She is cunning playful devious and skilled as shown when she trapped Playmaker. She also appears to have an interest in Playmaker. Emma shows little concern over which side of a conflict she takes as long as she gets paid and is even willing to backstab people shes worked with before. She prefers showing her clients proof that she indeed has the data they want before giving them the full archives as a show of trust. Emma studies her opponents and surroundings carefully and makes close and precise assumptions to their moves. Thus she uses this knowledge as she sees fit. Source: Yu Gi Oh Wiki