The Pureblood Protectors

An attack aimed at Byakuya, Rukia and their cousin, Tetsuya marks the resurgence of a dangerous noble group that aims to purify the noble bloodlines of commoner blood. When Renji and Tetsuya are abducted, they struggle to survive within a hidden prison as Byakuya teams with an enigmatic survivor of the last horrific bloodline cleansing...MxM, mpreg...Byakuya/Katashi, Renji/Tetsuya