 If you liked
Najica Dengeki Sakusen
|
 ...then you might like
009-1
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Both series feature sexy agent girls who can kick ass. Stylistically they look different, but the basic premises are rather similar. Also, 009-1 is more mature and bloody.
From the start, both series involves independent female characters who are skilled with handling firearms. They are good at what they do and that usually involves action with science fiction themes.
Both series' main female protagonist also mature themes involving murder and fan-service.
Both series has that tough girls with guns theme.