She's toying with her. Kohaku'll take it. She rolls past the backpack and comes back up to her feet sword in hand, then slowed down time.

It wasn't ACTUALLY slowing down time, but that's how it felt to her, as her body sang with tension and felt like it was responding to her faster than she could think. If they were going to do this, she couldn't give Ako any time to think, she had to IMMEDIATELY go on the offensive. This she did, with a series of blindingly quick slashes, each from a different angle. God forbid Ako actually catch her making predictable attacks.