Many years ago The Rooster Mask faced a truly fierce foe in the ring. The Dark Fowl was one of the most violent he ever encountered. A chicken on a path of blood. Though he was larger and used his might to supress his foes The Rooster Mask's blood boiled and using his fierce resolve and streadfast technique he was able to break Dark Fowl's undefeated record. Though The Dark Fowl wasn't seriously injured in the match he did not appear again during The Rooster Mask's career.
To clarify for those of you trying to piece the plot together this is The Rooster Mask not Son of Rooster Mask