The Central Computer sends the Lovely Angels out to destroy buildings/islands/continents/planets/solar systems where nanotechnology is being developed.Think about it — the CC keeps clearing them even though every other person in the galaxy knows they are the most dangerous lifeforms in existence and the CC had a cloning program set up so that Kei and Yuri can never truly die.
Dirty Pair Flash is actually a second generationThey are the SECOND Kei and Yuri to have the Lovely Angels moniker. The First was the team Freya/Iris was a part of. She's teh original Kei.
- A brief flashback showing the death of Iris's partner had long, dark hair, while Iris's hair is up, and red. Both are also in the classic 'Battle Bikini' uniforms