Jeff Bogard was a master of the Hakkyokuseiken martial arts school and the guardian of its secret techniques. Coveting this knowledge, Geese Howard, the most powerful man in South Town, challenged and murdered him in front of his adoptive sons Terry and Andy Bogard. Under the guidance of their mentor Tung Fe Rue, the brothers dedicate their lives to training in the ultimate art to avenge their father. 10 years later, Geese promotes a martial arts tournament known as the King of Fighters. Terry and Andy join their friend Muay Thai champion Joe Higashi and enter the competition in order to finally face Geese in combat.

Written by Kinoko Nasu, these specials are included in the BD box sets I & II. Join Irisviel as she helps Disciple No. Zero understand more details and history relating to the Holy Grail War.

Young millionaire Laocorn Gaudeamus is on a crusade to recover six pieces of armour said to give the user the powers of Mars—the legendary God of War. Fearing that her twin brother is slowly losing his sanity with every armour piece he collects, Sulia runs to Terry, Andy, Joe and Mai to form their own global crusade to stop Laocorn from opening a potential Pandora's Box and releasing an uncontrollable form of destruction. (Source: ANN)

The source material follows three girls — Kaede Makidera, Kane Himuro, and Yukika Saegusa — at Homurahara Academy, but has nothing to do with the efforts to restore the Human Order. (Source: ANN, edited)