Dragon Quest: Dai no Daibouken Episode 21 English Subbed Episode Title:Father's Enemy is Avan!? The Ultimate Black Sword of Hatred!!.Episode Description: Hyunkel, the immortal commander who wears the strongest armor and sword and uses Avan's sword technique. He dies who has no way to make a great achievement. Hyunkel says. The undead monster, the father who raised him, was lost because the devil was killed. He said that he was a disciple of Avan himself to convey death.