Mercedes is a pivotal character in the action role-playing game 'Odin Sphere'. She is the princess of the Fairy Kingdom of Ringford and becomes its queen following the death of her mother, Queen Elfaria. Initially hesitant and inexperienced, Mercedes grows into a capable and determined leader, wielding her mother's weapon, the Psypher Crossbow, with great skill. Her journey involves uniting her kingdom against external threats and proving her worthiness as a ruler. Mercedes' character development is central to the game's narrative, highlighting themes of responsibility and courage.