Ran'Tao

蘭島

Debuting in the anime's Bount arc, Dr. Ran'Tao led the research team responsible for creating the Bount race. She bears an exact resemblance to Yoshino Sōma, differing only by a pair of glasses and her hair being tied up (similar to Nanao Ise). The two also share the same voice. Ran'Tao has stated that she is much older than she appears and has discovered a method to maintain her youthful look, but she must take very long naps (about twelve hours a day, to be precise) to sustain her appearance.
Driven by guilt for accidentally creating the Bounts, Ran'Tao took pity on them and assisted in building a sanctuary where all Bounts could reside, as they were being persecuted by ordinary people at the time. She persuaded the Bounts to allow her to secure their protection from Soul Society. Upon returning to Seireitei, she was immediately arrested and put on trial by Center 46 for her failed soul experiments. When the order was issued to exterminate the Bounts due to them being considered a threat, Ran'Tao slipped out to the real world to help them escape, with Jin Kariya being one of the escapees. She also gave him "Messer", his doll. Shortly afterwards, she was captured and had her shinigami powers sealed, before being exiled from Seireitei.
Ran'Tao went into hiding in an underground shelter in Rukongai, where she remains to this day. She spends her time conducting minor experiments to utilize spiritual energy more effectively, one of which is a kidō shotgun that she uses on Jin Kariya during their confrontation. [wikipedia]