Renji stretched out a hand, running his fingers through black spikes of hair, the boy laughing lightly. "I saw niisan come back from death once. Nothing can take niisan away if he doesn't wanna!" he stated.

The medic gave a smile, but it turned to a frown as he looked back to Itachi. "I doubt death would happen. There would be much deterioration for certain if treatment was cut, but blowing it out of proportion and making threats is quite bad taste. I can certainly adapt this treatment to suit my needs... and yours."

A pause and he bowed his head. "That is, if you will alkow me, Itachi-san."