The originally published Berserk one-shot, when reprinted it has added "The Prototype" as a subtitle. Although it is similar to the original serialization that started soon after this was first published, some of the changed elements have made it non-canon. It was the first appearance of Guts and Puck, a partnership that carried over to the first Berserk serialization but was reintroduced much later in the mainline Berserk serialization.