The King of Fighters: Another Day is an animated series based on the fighting game series The King of Fighters. It was produced by Production I.G, and revolves around the plot of the 3-D version titled The King of Fighters: Maximum Impact, along with some touches of the current 2-D series storyline about Ash Crimson. The anime was originally announced at Tokyo Games 2005.

Production I.G, Inc. is a Japanese animation studio and production enterprise. Headquartered in Musashino, Tokyo Production I.G was founded on December 15, 1987, by producer Mitsuhisa Ishikawa and character designer Takayuki Goto as "I.G Tatsunoko", a branch studio of the animation giant Tatsunoko Production, changing its name to the current Production I.G in September 1993. The letters I and G derive from the names of the company founders. Since 2007, Production I.G is a subsidiary of the IG Port holding company. Ishikawa was president and CEO of the studio until August 2022 when that position was given to George Wada with Ishikawa remaining as chairman of the company.