|Affiliation||Gotei 13, Soul Society|
|Position||Lieutenant of the 5th Division|
|Previous Partner||Sōsuke Aizen|
|Base of Operations||5th Division HQ, Seireitei, Soul Society|
Momo Hinamori is the lieutenant of the 5th Division, formerly under Captain Sosuke Aizen.
Momo has brown eyes, and wears standard Shinigami robes, with her black hair pulled into a bun held in a tied cloth. When in her Shinigami robes, she wears the 5th Division's lieutenant armband. While in her pajamas, a plain kimono, her hair is tied in a loose ponytail.
Momo is generally an upbeat, easy-going, and friendly girl. She has a strong friendship with Toshiro Hitsugaya, whom she grew up with, repeatedly calling him "Shiro-chan", despite his higher rank and complaints about this. Though normally kind, her rare bouts of anger can appear rather menacing. While serving as his lieutenant, Momo greatly respects and admires Aizen. She idolizes him to the point where a letter from Aizen leads her to attack Hitsugaya, her childhood friend, and even after being stabbed by Aizen, she, proclaiming Aizen was being manipulated, asks Hitsugaya to save him. Tragically, it is likely that the psychological damage inflicted on her by Aizen will not repair itself anytime soon.