With Karin soundly asleep on Sakura's bed, Tsunade closed the door with a soft 'click.' The bite marks on the young girl's arms and legs were deep. The bruising went into the muscle and, in some places, the bone. With an ability like Karin's, where the only way to activate it is through inflicting pain, the damage is harder to heal. But Tsunade had done what she could to repair the damage.

Flopping into the first available seat, Tsunade laid her head back against the cushion. 'I've healed what I could. Some of those bites were so deep it burst blood vessels and bruised muscle. ' Letting out a sigh, Tsunade shook her head. 'I haven't seen that ability since Uzushio still stood. ' She held a glowing hand over her head, trying to stop the headache threatening to take over. 'Itachi. I don't suppose you've been listening? '