OVA
Description
Download is a character from the original video animation Compiler. She arrives on Earth alongside her partner, Upload, with the specific mission to delete the rogue programs Compiler and Assembler. Download and her partner are sent as an assassination team after the initial agents, Compiler and Assembler, abandoned their original destructive purpose to live among humans.

As a being from the same digital reality as Compiler and Assembler, Download is a sentient program that has taken on a distinctly female humanoid form. She is described as an attractive young woman who, like her targets, possesses a disk drive in her head. This physical detail signifies her non-human, cybernetic origin and is central to her abilities. Physically, Download has black hair and brown eyes.

In terms of personality, the available information suggests a direct and mission-oriented focus, though she and Upload also display a surprising adaptability to human culture. Upon arriving in Osaka, for instance, the pair immediately insert the appropriate local data disks into their head drives, allowing them to speak the Osaka dialect and perform local comedy routines. This suggests that their programming includes not only combat protocols but also social and linguistic adaptability, allowing them to blend in or interact with their environment. Their manner is utilitarian and lacking in the emotional complexity that defines the protagonists.

Download and Upload act as the primary antagonists in the second episode of the series. Their role is to eliminate the traitorous Compiler and Assembler, who have formed romantic attachments with two human brothers and chosen to protect Earth. The conflict between the two pairs of digital women culminates in a large-scale battle fought across the real-world landmarks of Osaka. In this confrontation, Download and Upload demonstrate their notable ability to transform symbols of the city into giant monsters, using the local environment as both a weapon and a battlefield. This power highlights their nature as programs capable of manipulating and reinterpreting data on a massive scale, turning abstract concepts into physical threats. The battle with the protagonists is their central purpose in the story, serving as the physical manifestation of the conflict between the programs' original duty and their newfound desires.