 If you liked
Ikkitousen
|
 ...then you might like
Natsuki Crisis
|
Both anime's are about girl fighting (martial arts with some super power), and it's school against school. Our heroines are fighters but they don't fight with the intent of killing someone. Ikkitousen already has 4 seasones and it's quite possible there will be 5th, while Natsuki Crisis is only a 2 episode OVA and has that nice old school animation.