Yū Nakamura

Yū Nakamura (中村優; Nakamura Yū) was a human who existed several hundred years before the main Bleach continuity. She was a host of the jinki fragment who was briefly acquainted with Herrera Tresckohen. Following an encounter with Herrera and Mūkade, Yū unleashed the power of her jinki fragment. However, she had no prior training in its use and died from overexertion.

Biography
It was not known what Yū's story was before she met Herrera Tresckohen. But her meeting with the hollow was relatively friendly at first. However, she was the unwilling spectator in a duel between Herrera and Mūkade when the latter appeared to "harvest jinki fragments." When Herrera was about to be defeated by Mūkade, Yū unwittingly activated her fragment powers to save Herrera and the two fled. Yū, although concerned about Herrera's well being, gradually passed away since her body could not handle the level of power that she displayed to save Herrera. Although she became a plus, she advised Herrera to return home, to which Herrera agreed. Yū later received a soul burial and was sent to Soul Society.