It's has been some time since Manji 'fed' and made sure his worms would work if attacked. He has to keep this in mind as he jumps back away from the swipe. Perhaps they'd keep him alive, but he's not so sure he wants to risk it. Plus, there was the kid to think about. If he gets his guts ripped out he'd need time to recover and then there would be no one to keep her safe.

"That's it you brute!" He pivots, trying to dash towards the creature's side while keeping himself between it and Eda. Striking out with his sword as he moves.