Kei and Yuri were originally junior auxiliary agents in the Worlds Works and Welfare Agency (W.W.W.A. or 3WA for short) when the two were paired together under the codename Lovely Angels. Kei was coming off her fourth probation for something she had done, and Yuri's dating exploits were common knowledge, not to mention the two had an instant dislike for each other when they met. At first, Kei and Yuri refused to work with each other, and Kei even resigned from the 3WA. Afterwards, the two continued to work together, although they earned their nickname, the Dirty Pair because of all the collateral damage the two (unintentionally) cause in the completion of their cases. And even though the two now get along with one another, they continue to bicker and complain to each other. Although it is often said that these are younger versions of the original Lovely Angels Kei and Yuri, in truth this series is an alternate universe telling of Dirty Pair, set in the years 2248-49. (Source: Wikipedia)

Returning to the Digital World, Taiki and Shoutmon learn that the Bagra Army has taken it over and reformatted the world to have Seven Kingdoms, each ruled by a general. (Source: AniDB)

It's Chief Gooley's worst nightmare come true. The Lovely Angels are back on the job, but this time the 3WA's Central Computer has assigned them two cases at the same time: investigate a space liner explosion in which three hundred people died, but no one`s come forward to claim any insurance money; and find a missing scientist and his family. Could the two cases be connected? Only the Central Computer knows and it's not talking. So it's up the Dirty Pair to get down and dirty and solve the puzzle before time runs out for a grieving grandfather, his family and the universe! (Source: AniDB)

The Dirty Pair are traveling to the planet of Ookbar in search of a missing girl. Kei and Yuri have traced Missinie to the forest of Nolandia, but their investigations have stalled thanks to the less-than-helpful Chief of Security. But the Dirty Pair have never let a little bureaucracy stand in their way. (Source: AniDB)