Duren is a major character in the Ys series of games, specifically all versions of Ys IV, including Ys: Memories of Celcetta He is 23 years old and a member of the Clan of Darkness. He is an information broker and join Adol in exploring Celcetta in hopes of the large sum of gold that would be rewarded.

Although he is greedy, he is a kind-hearted man who won't turn down anyone in need of help. He is very strong and uses his fists in combat.