"Dirty Pair OAV 1" is a science fiction anime set in a futuristic universe where humanity has colonized numerous planets. The story centers on Kei and Yuri, two highly skilled but accident-prone operatives known as the "Lovely Angels," who work for the World Welfare Works Association (3WA). Despite their competence, their missions often result in collateral damage, earning them the nickname "Dirty Pair."

The narrative begins with Kei and Yuri being assigned to investigate a series of mysterious disappearances on the planet Agerna. The disappearances are linked to a powerful corporation, and the duo must uncover the truth while navigating corporate espionage, political intrigue, and dangerous adversaries. As they delve deeper, they discover a conspiracy involving illegal experiments and a secretive project that threatens the stability of the planet.

Kei and Yuri's dynamic is central to the story, with Kei being bold, impulsive, and quick to action, while Yuri is more analytical and cautious. Their contrasting personalities create a balance that drives both the plot and their interactions. The series blends action, humor, and suspense, with the protagonists frequently encountering high-stakes situations that test their skills and teamwork.

The OAV explores themes of corruption, the ethical implications of scientific advancement, and the consequences of unchecked corporate power. The narrative maintains a brisk pace, with each episode building on the central mystery while showcasing the protagonists' resourcefulness and combat abilities. The series also features a variety of supporting characters, including allies and antagonists, who contribute to the complexity of the plot.

"Dirty Pair OAV 1" is characterized by its blend of lighthearted moments and intense action sequences, set against a richly detailed sci-fi backdrop. The story remains focused on the protagonists' mission, with a clear progression from investigation to confrontation and resolution. The series effectively balances its episodic structure with an overarching narrative, providing a cohesive and engaging viewing experience.