Echo was shown after Wind Ignis ordered to Echo to return into his normal form since he made pranks for Playmaker, Soulburner, Ai and Flame. Windy pointed to the monk, claiming it is a program it named as Echo. Echo introduced himself that he was created by Windy calling him master. He was supporting Windy while he explained why he's in the area. Echo remained with Windy after Playmaker and Soulburner went to take care of Ghost Girl and Blue Girl.
Echo was supporting Windy while he was dueling with Revolver. Outside the temple, there were tons of Echo programs who kept the fake Cyberse world, but the Knights of Hanoi destroyed the Echo programs. After Windy lost the duel against Revolver, Echo disappeared as well.