Nelliel Tu Odelschwanck is an Arrancar and former Tercera Espada who embodied the aspect of death through sacrifice. She once held third place among the Espada, but after a treacherous attack by Nnoitra Gilga and Zaelapollo Granz, her mask was broken and she turned into a child, losing her memory and powers. In this state, known as Nell, she lived in Hueco Mundo with her adoptive brothers — former fracciónes Pesche Guatiche and Dondochakka — and their pet Bawabawa. After meeting Ichigo Kurosaki, her memory and adult form gradually recovered. Nelliel is a noble and peace-loving warrior who fights only to protect those close to her, but when necessary she is capable of devastating power.