Keough

As Yufa's older brother, this knight served as a subordinate to the Dark Lord. He shared a childhood bond with Iruga and accompanied him on an expedition to Glast Heim, where their journey was interrupted by an Abysmal Knight. During their escape, he played a crucial role in distracting the knight, allowing others to flee, but he was ultimately betrayed and trapped within the ruins, eventually being revealed as corrupted by the Dark Lord.