Rantao

Rantao: is an extremely intelligent shinigamai that wa exiled from the soul society after an experiment she was conducting went terribly wrong which caused the creation of the Bounts. She took it upon herself t gather all of the Bounts After which she tried to get the Soul Society to agree to let the Bounts live amongs the Shinigami but was denied the request by the central 46 chambers and was exile from the Soul society, and instead the central 46 chambers order the extermination of the Bounts though she manage to save a few most of the Bounts where killed.

after the Bounts invaded the Soul Society it is revealed that she has managed to save one Bount (Go Koga) She bears an extreme resemblance to the Bount nameYoshino Soma