Bercouli (ベルクーリ, Berukūri?), also known as Bercouli Synthesis One (ベルクーリ・シンセシス・ワン, Berukūri Shinseshisu Wan?), was one of the founders of Rulid Village, as well as the Knight Leader of the Integrity Knights, and the oldest Integrity Knight in existence. Bercouli's weapon of choice was the Time Piercing Sword.