User blog comment:Garybusey92/Izuru Kira's Fate/@comment-5551986-20130610142947/@comment-10630156-20130611021734

There was Hachi and he is probably the main contender for Unohana's vacated position in the 4th division. And Unohana got to them fairly quickly after hiyori had been wounded (Kira wouldn't have had this luxury)