Really dude? ISIS?

Anyway, they couldn't go after Kurome BECAUSE of her summons. Night Raid didn't know about that nor that they'd be so damn strong. They were too strong to just ignore or try to pass by. And as she demonstrated. If she saw an opening to strike she would take it. That's how Leone lost her freakin arm. Only mistake I could think off was that Najenda didn't seen Suu after after Kurome when they took down the biggest threat.

But it's too bad Bols had to kick it. He was the most 'human' of the group. Being with a loving family and all. That's what I do like about the show. Some of the 'badguys' aren't portrayed as evil and sometimes aren't evil. I mean Wave isn't a bad guy nor is he evil.