Asch is a stern, firm, and loyal warrior. He has devoted his life to serving Kiranai, whom he sees as a goddess. His devotion borders on obsession, and he would do anything to protect her from harm. Asch has a deep respect for tradition and honor, and expects those around him to uphold these values as well. He is not one to show emotion openly, as he believes it weakens one's resolve in battle. However, beneath his stoic exterior, there is a sense of duty and care for Kiranai that runs deep.