Desmond Miles is a fictional character from the video game series Assassin's Creed. He is a modern-day descendant of a long line of assassins and plays a crucial role in the story by using a device called the Animus to access the memories of his ancestors. This allows him to experience their lives and learn their skills. Throughout the series, Desmond's journey involves uncovering secrets about the Assassin Brotherhood and their conflict with the Templars. His character evolves as he gains abilities from his ancestors, ultimately becoming a key figure in the ongoing battle between these two factions.