3rd seated officer of the 4th Division, and the leader of the first relief team serving under Captain Retsu Unohana. He is also the Vice-President of the Shinigami Men's Association.

Iemura is very vain, likes to act cool, and thinks he will look better without glasses. He was born on a leap day, February 29. His rank is quite high, but since he comes from the weakest division in terms of combat he has to call the other divisions's 3rd seaters with a -sama suffix. He meticulously keeps a diary, which he sometimes defeats the purpose of by narrating what he's writing in it (particularly when lamenting something). He takes direct command of the Division like a general. His speedy treatments rival those of the lieutenant, Isane Kotetsu.