U: NaNaNa Najahjoop
NaNaNa Najahjoop (ナナナ・ナジャークープ, Nanana Najākūpu?) is a member of the Stern Ritter force and is ranked with the letter U. He engages in a battle Rōjūrō Otoribashi, claiming that he will kill him in five minutes. Later after the fight with Rose, the result unknown, he joins As Nodt and an unnamed quincy to attack Yamamoto during his fight with Juha Bach. Yamamoto easily incinerates them with his zanpakutō.