Nelliel Tu Odelschwanck/Expanded Universe

is the former Tres (three) Espada. She was also known as when she was a small, good-natured, childlike Arrancar. Nelliel lives in Hueco Mundo where she co-rules the world alongside her fellow Espada, Tier Harribel.

Personality
Nelliel has a philosophy on life that provides a code of honor, respect and mercy.

Bleach: Can't Fear Your Own World
After rescuing Grimmjow Jaegerjaquez, Kisuke Urahara, Yoruichi Shihōin, and Yūshirō Shihōin from Askin Nakk Le Vaar's Gift Ball Deluxe, Nelliel and Grimmjow saved Tier Harribel from Yhwach's dungeon in the Wahrwelt. With Nelliel carrying Harribel while leaving the Soul King Palace, they encounter Shunsui Kyōraku and Ichibē Hyōsube who are in the middle of turning Yhwach's corpse into the new Soul King. Before Grimmjow could attack the Shinigami who are surrounding them, Nelliel uses her Bala to stop and remind Grimmjow that picking a fight now, right after the Quincy were defeated, would make them the next enemies for Shinigami. Grimmjow is not perturbed in the slightest, arguing that they just need to kill them all, but he finally relents after Ichibē assured them they would be free to leave, after emphasizing the importance of the balance of three worlds for the moment. Before returning to Hueco Mundo, Grimmjow then considers fighting Ichigo Kurosaki, but Nelliel once again reminds him that Ichigo is still heavily injured and Grimmjow wouldn't be satisfied fighting the weakened Substitute Shinigami.

Six months after the Quincy Blood War, Nelliel, together with Harribel and several other Arrancar who used to serve Aizen, are gradually bringing back peace to Hueco Mundo by defeating the remaining Quincy. However, their peace is interrupted when a child clad in Shihakushō named Hikone Ubuginu arrives in Hueco Mundo and attacks them in an attempt to conquer them. Nelliel, together with Grimmjow, Harribel, and the Quincy Liltotto Lamperd and Giselle Gewelle, manage to wound Hikone enough to force a retreat through another Garganta.

Sometime later, Harribel and Nelliel are informed by Rudbornn Chelute that Grimmjow has left for Soul Society. While Nelliel is worried that Grimmjow wants to attack Ichigo Kurosaki, neither Harribel nor Rudbornn believe that even Grimmjow is that impulsive. Shortly afterwards, Harribel and Nelliel open a Garganta to Soul Society with the intent to recover Grimmjow.

As Harribel and Nelliel arrive in Soul Society, they are confused to find Luppi Antenor present and alive, as well as Quincy and Shinigami both fighting a gigantic, unknown Hollow controlled by Hikone. The Hollow, Ikomikidomoe, notices the new arrivals and addresses them, asking the female Arrancar if they are "misstresses" of Baraggan Louisenbairn. When an insulted Nelliel counters that Baraggan is dead, Ikomikidomoe reminisces about the former King of Hueco Mundo and lets out another massive roar.

Soon after, Ikomikidomoe proceeds to spawn a large amount of Hollows to attack the Quincy and Arrancar, and Nelliel confronts Grimmjow, demanding an explanation from him. Eventually, Hikone returns Ikomikidomoe to his sword form and prepares to leave through a Garganta. When the Quincy and Arrancar try to stop them, Hikone fires a Gran Rey Cero at them, though Nelliel reacts quickly enough to counter it with a Cero Doble alongside Liltotto's The Glutton. As both are exhausted from this, Liltotto ask Nelliel if the Arrancar wishes to resume their earlier battle from in Hueco Mundo, but Nelliel assures the Quincy that as long as they stay out of Hueco Mundo, she has no quarrel with them. While Grimmjow objects to this, they are interrupted by the arrival of Nanao Ise, who informs all present that Captain-Commander Shunsui Kyōraku requests their presence.

Sometime later, Nelliel alonsgside the other Arrancar, Fullbringers, and Quincy have gathered at Kūkaku Shiba's residence. As Yoruichi Shihōin explains the situation to Kūkaku, the tensions between the different groups are high, to which Kūkaku furiously exerts her Reiatsu and demands that everybody behave in her house, which earns her the respect of both Nelliel and Harribel, who note their surprise at Kūkaku's power despite not being a Shinigami.

Powers & Abilities
Immense Spiritual Power: As the former third Espada, Nelliel has a grand amount of spiritual energy, powerful enough for her Fracción to sense it from a large distance. Renji even stated that her spiritual power was close to Ichigo's, confusing the two for a moment. Her Reiatsu is pink.

High Intellect: While in her original form, Nelliel is quite intelligent, possessing a great understanding of combat and its forms, and the methods behind an opponent's skill and intentions, as well as discerning personalities easily.

Bala: Nelliel is able to fire Bala blasts from her hands. She used one to discipline Grimmjow Jaegerjaquez when the other Espada tried to antagonize Shunsui Kyōraku and Ichibē Hyōsube. The attack was potent enough to cause pain to Grimmjow.


 * Nelliel's speciality allows her to to absorb an incoming Cero and fire one of her own while returning it. Nelliel can even absorb a Gran Rey Cero with this technique, although it did leave her winded and slightly injured.


 * : A technique used by Espada-level Arrancar, and sometimes others, to open a Garganta between the Human World and Hueco Mundo. Nelliel used this technique alongside Harribel to travel to the Rukongai in order to recover Grimmjow.

Zanpakutō

 * Her Zanpakutō has a green sheath, a light green hilt, and a tsuba that resembles a pair of crescent moons joined together at the back.
 * Resurrección: Its release command is . In her released form, Nel takes the form of a brownish-green ibex-like centaur, complete with a black horse's tail. Her Hollow mask's horns become longer and more curved, framing the sides of her face, particularly the cheeks. The crack on her mask also closes up, although the missing teeth remain. Her shoulders are covered by white spaulders that come across her shoulder blade to her neck. She has white elbow guards and white gauntlets. The parts of her arm that aren't covered by armor are covered by a black material, which also covers her hands. There is a white ring at the base of her tail. Her sword is replaced with a double-sided lance. These features grant her the overall appearance of a medieval knight or jouster.


 * Resurrección Special Ability: The only attack she has used in this form so far is Lanzador Verde.


 * Nel throws her lance at her opponent with extreme speed. As it travels through the air, it begins to spin and build up spiritual energy. When it reaches its target, it acts as a drill, inflicting extreme piercing damage.

Bleach: Brave Souls

 * Nelliel is playable in Brave Souls in various different appearances, including one with her post-timeskip outfit that she wears in both the Thousand-Year Blood War arc and Can't Fear Your Own World. In this form, Nelliel is a ranged character with the "Shinigami Killer" ability. Her special attack is, where she dashes forward and fires a Cero that inflicts immense damage.
 * According to her character trailer in Brave Souls, Nelliel's aspect of death is Lamentation.
 * A unique form for Nelliel appears in Brave Souls to commemorate the inclusion of the Can't Fear Your Own World light novel. Designed by Tite Kubo, this appearance mirrors Ulquiorra's own Hōgyoku-enhanced power, transcending Resurrección.


 * Beyond Resurrección: A form transcending a Resurrección, that can be achieved by bonding with the Hōgyoku. In this form, all traces of Nelliel's Hollow mask vanish and are replaced by four curling black-and-white horns that jut upward from her head. She retains her equine lower body, though the fur is now darker in areas and extends to cover her upper body, arms and hands. Glowing pink markings extend from her torso to her chest and shoulders, while the scar on her forehead is cracked open and filled with pink Reiatsu. Fur identical in color to her hair forms on her back and her tail, the end of which blazes with pink Reiatsu. Nelliel's eyes become darker and her pupils turn slit-shaped. Her weapon changes from a dual-ended jousting lance to a stylized spear blazed in pink Reiatsu, with the Hōgyoku resting in the hollow handle.
 * An ability where Nelliel unleashes her high-density Reiatsu from her lance, inflicting immense damage on her opponent.