Kisame is actually impressed that Naoki holds still and doesn't let the fish go, not that his summons couldn't catch it, and smiles and nods his approval.

The shark, for her part, does take care not to injure Naoki when she bites on down on the struggling fish. Naoki is then left with half a bloody fish in his hands and she nudges at him, trying to get him to let it go so she can snap up the rest.