|Affiliation||Gotei 13, Soul Society|
|Occupation||Captain of the 5th Division|
|Previous Partner||Runa Kirameki, Sora Kazuhiko, Jin Kaiser|
|Base of Operations||5th Division HQ, Seireitei, Soul Society|
|Bankai||Daizenbutsu wa Requiem|
Reina Sasaki (レイナ佐々木, Sasaki Reina) is the captain of the 5th Division in the Gotei 13. She is a protagonist character.
Reina is an adult woman with a curvaceous figure. She has blue eyes and long violet hair worn as a long pony tail with long bangs framing her face.
Reina Sasaki is a kind and strong-willed person. She is also strict and tsundere. As a captain, she is also punctual and laid-back at times. She is easily fascinated, bored and slow. Unlike other captains who normally stay in Seireitei, she is not in Seireitei most of the time.