Duke Beriel is a supporting character in Atelier Escha & Logy: Alchemists of the Dusk Sky. Duke runs a bar in Corseit. He used to work for the Corseit branch's punitive section, but retired after getting a serious injury from fighting a monster. He has a bold personality, and his cooking is very lively. Colland Grumman is an old friend of his since his time in the branch. The player can buy items from Duke at his bar, and the Full Measure Sweets recipe book can only be obtained from one of his character events.