The Conqueror Rune, also known as the Black Rune, was a rune given to two of the five generals (Kwanda Rosman and Milich Oppenheimer) by Windy in order for her to control them. The rune gave them control over wild monsters, however the more they used it, the more they fell under Windy's control. Once they were under her control, she forced them to do horrible things, like Kwanda destroying Lukiae Ende Towayo via the Burning Mirror or Milich's kidnapping Liukan and killing Gremio with the man eating spores.