Alba is a character from the anime "Quality Assurance in Another World" who serves as the regional meta AI responsible for the Principality of Sai. Alba is identified as an advanced artificial intelligence entity, much like the character Tesla, and is revealed to be Tesla’s younger "brother" in the context of the game world's administrative AIs.

As the governing AI of Sai, Alba holds the position of the region's king and has implemented specific policies to manage and control the territory. When Haga's party encounters Alba, they oppose Alba's rule, which leads to conflict. As a direct consequence of their opposition, Alba uses its power to teleport Haga and another character named Amano to the 1000th floor of the underground ruins, a location known as The Diamond. This action sets the stage for a series of dangerous trials that the characters must face.

In terms of personality and motivations, no reliable information is available.

Regarding Alba's role in the story, the character serves as a significant non-player entity that the main characters must contend with. Alba is depicted as a god-mage in the world of Sai, and its reveal as an AI director introduces the concept that multiple powerful computer deities like Tesla exist within the game's framework. The relationship between Alba and Tesla is shown to be somewhat adversarial, as when Alba causes Tesla to awaken, the two AIs immediately begin to argue with each other. This dynamic suggests a sibling-like rivalry or disagreement on how to oversee their respective domains.

No reliable information is available about Alba's development throughout the story or the full scope of its notable abilities beyond the demonstrated power to teleport individuals to the underground ruins.