Rozen serves as an officer for the Order of the Seven Lances, which is Glenn's personal unit. Their mission involves assisting Koinzell until they learn that he possesses a secret - he is Asceriit and believes that the true lances of betrayal are the seven heroes. Despite this revelation, Rozen disagrees with Koinzells plan for vengeance because he feels that no matter how guilty these heroes may be, their actions have contributed to the stability of the empire. This creates a conflict within him as he is exposed to both sides of the story about the supposed Seven Heroes and Lances of Betrayal.