"The King of Fighters: Another Day" is a four-episode OVA series set in the universe of the popular fighting game franchise "The King of Fighters." The story unfolds in South Town, a city plagued by chaos and violence, where various factions and fighters are drawn into a conflict involving the mysterious organization known as Those from the Past. The narrative is divided into four interconnected episodes, each focusing on different characters and their roles in the escalating events.

The first episode, "All Out," introduces Kyo Kusanagi and Iori Yagami, two rival fighters with a long-standing feud. Despite their animosity, they are forced to work together when they encounter a powerful enemy, Alba Meira, who is under the control of Those from the Past. The episode highlights their uneasy alliance and sets the stage for the larger conflict.

In the second episode, "Accelerator," the focus shifts to K' and Maxima, who are investigating the activities of Those from the Past. They encounter a young girl named Soiree Meira, who is searching for her brother, Alba. The episode delves into the themes of loyalty and sacrifice as K' and Maxima confront their own pasts while trying to protect Soiree from the organization's machinations.

The third episode, "Inheritor," centers on Ash Crimson, a cunning and enigmatic fighter with his own agenda. Ash infiltrates Those from the Past to retrieve a powerful artifact known as the Yata Mirror. His actions reveal deeper layers of the organization's plans and the true extent of their influence. The episode explores Ash's motivations and his complex relationship with the other characters.

The final episode, "All Together," brings the various storylines together as the fighters unite to confront Those from the Past. The episode features intense battles and dramatic confrontations, culminating in a climactic showdown that determines the fate of South Town. The resolution ties together the individual arcs of the characters while leaving room for future developments in the "King of Fighters" universe.

Throughout the series, the narrative emphasizes the interconnectedness of the characters and their shared history. The OVA serves as a bridge between the events of "The King of Fighters 2003" and "The King of Fighters XI," providing additional context and depth to the ongoing storyline. The series maintains a focus on action and character dynamics, staying true to the spirit of the original games.