Jackie Tristan

is a Human who formerly possessed Fullbring powers and is a former member of the organization known as Xcution.

Appearance
Jackie is a tall dark-skinned woman with straight chin-length dark hair, brown eyes and full lips. She wears a dark brown long-sleeved low cut shirt with form-fitted trousers and dark knee lengths boots.

Personality
At first she seemed to be quiet, saying nothing and not standing out with the exception of separating Yukio Hans Vorarlberna and Riruka Dokugamine when they fought against each other. Later, she showed that she knows how to respect people who care about her and she was willing to commit suicide in order for that person to live instead, even though she didn't know him and did it only because he refused to kill her and was kind to her enough to take her with him as he tried to leave Yukio's Fullbring. She also seems to disagree with taking useless risks, refusing to continue training Ichigo Kurosaki after she saw Ichigo's condition. She is also the only member of Xcution, uninfluenced by Tsukishima, to actually hate her ability.

History
As a child, Jackie's first present was a pair of leather boots given to her by her father. Despite the fact that the boots were likely stolen, Jackie pretended not to notice and accepted them happily. She was careful with the boots and cleaned them often. However, one day, when Jackie returned home, she found that her entire family was killed, and she later discovered that they died because of her father moving merchandise onto the black market. The first substance to stain Jackie's boots was her brother's blood, and her Fullbring was awakened shortly afterwards.

At some point, Jackie met Shūkurō Tsukishima and Kūgo Ginjō, and along with other Fullbringers, namely Riruka, Yukio, and Giriko, was convinced to join Kūgo, forming Xcution. She and other Fullbringers made a pact with Kūgo to share each other's powers and a small promise not meant to be broken.

Seventeen months after Aizen's defeat, Jackie along with Kūgo and the rest of Xcution fell under the influence of Tsukishima's Fullbring, to make Tsukishima look like the sole villain, as part of their plan to steal Ichigo Kurosaki's Fullbring to strengthen their own.

The Lost Substitute Shinigami arc
Jackie is present along with Yukio and Giriko Kutsuzawa in the Xcution's main headquarters when Kūgo Ginjō brings Ichigo Kurosaki into the building for him to join them. After Kūgo explains to Ichigo who they are, and after Riruka Dokugamine brings in Yasutora Sado, Ichigo agrees to help the Xcution with their goals, which relieves Jackie, who states that she was worried that he would refuse.

Ichigo later returns to the Xcution for training. When Riruka enters with a doll house, she immediately starts fighting with Yukio. Jackie breaks up their fight and asks Riruka to explain the Doll House to Ichigo. Riruka complies, arguing that she didn't need her to remind her.

As Ichigo trains inside the Doll House, she asks Kūgo if he will be alright. Kūgo replies that he does not know. Later, while Riruka is eating, Jackie notices that Riruka is worried and asks why she does not help him. Riruka denies being worried and tells her that if he dies from the training, then it will just show how limited his potential was. Jackie asks if she is certain, inquiring if she has a timer on the doll and pointing out that fifteen minutes is almost up. Yasutora Sado returns to Xcution's hideout and asks what the Doll House is. Jackie tells him that Ichigo is doing his Fullbring training in it, surprising him.

Later, Jackie asks Kūgo if he's drinking because he's happy that Ichigo's training is going well, which he denies. She also appears shocked that Ichigo knows of the existence of Shūkurō Tsukishima. Jackie allows herself to be placed inside Riruka's fish tank for Ichigo's next training session, where she confronts him when he arrives and introduces herself properly to him, ready to battle.

Jackie waits for Ichigo to attack her, but he replies that he's waiting for her to activate her own Fullbring. Jackie then tells Ichigo to think of their training session as more of a battle rather than training and activates her Fullbring, Dirty Boots. When her Fullbring is finished activating, she moves at high speeds and tries to attack Ichigo, but he manages to evade her strike, much to the surprise of both of them. Ichigo asks about Jackie's change of clothes and she tells him that it is a part of her Fullbring, but she refuses to tell him her Fullbring's ability. Ichigo decides to treat it like a fight after all, thinking that he might find out while they're fighting.

Ichigo then begins to fight her, releasing an energy blast at Jackie. She dodges this easily, jumping into the air, as he fires off another in response, which she blocks directly with her foot. Jackie berates Ichigo on his lax way of fighting, telling him that his Fullbring has no practical use in battle. She then rubs her boots in the mud, proceeding to attack him again with a noticeably more powerful kick, slamming him into the water. She then reveals to him the true nature of her abilities, stating that he will die if he continues fighting in that manner.

Jackie reveals the weakness of his Fullbring, in which the number of blades decreases each time he fires off an energy blast. She goes on to say that, if Ichigo releases an energy blast with a four or less blades, she will be able to shatter it easily. He ignores her statement, releasing a multitude of blasts, as he increases his speed, knocking her to the ground. She asks Ichigo who taught him to fight, to which he tells her that Kisuke taught him stating that, although he was only a Shinigami for a short period of time, he probably has more experience than Xcution.

Jackie smirks, realizing that Ichigo has had a great deal of combat experience during his time as a Shinigami and that he was able to reawaken combat instincts by engaging in battle without his Shinigami powers. Jackie realizes that Ichigo's Fullbring is reacting differently, and the energy from his badge begins to spread up his arm. As the energy engulfs Ichigo's arm, Jackie decides to abort their training, telling Ichigo that his Fullbring is going berserk because his training is progressing too quickly. She tries to get Kūgo or Giriko to have Riruka deactivate her Fullbring, but Ichigo pins her down and tells her that he sees this sudden change in his Fullbring as a sign that his badge is telling him that he needs his powers to return soon. Jackie decides she will have to beat Ichigo down in order to make him understand.

As Ichigo and Kūgo enter Tsukishima's mansion, Ichigo runs up stairs into a room where he finds Jackie standing there with other members of Xcution. As Ichigo goes off to fight Tsukishima, Jackie along with Riruka Dokugamine, Giriko Kutsuzawa, and Moe Shishigawara battle against Ginjō. She activates her Fullbring and attempts to kick him, but he dodges the attack.

After Kūgo gets away and removes Ichigo's Fullbring from him, Jackie and the others rush to their location. Giriko and Yukio complain about Kūgo not sharing Ichigo's powers with them. Kūgo states that he intended to share it and uses his sword on each of them. They each change form somewhat. Upon receiving new powers, Ichigo tries to take her and the rest of Xcution out with a single blow, but Yukio hides Jackie and the others, replacing them with copies. She then enters battle against Renji.

As their battle begins, Jackie berates Renji for not attacking her. He states that he refuses to attack a woman first, whether she is stronger than him or not. He then asks about the exhaust pipes on her shoulders, and Jackie expresses her surprise at him knowing about them. The pipes then secrete a large amount of sludge, covering her body completely. She then stomps the ground, causing the rock formations nearby to topple, while telling Renji that he'd better draw his sword. She attacks, managing to land a kick on Renji, though it appears to do nothing to him, shocking Jackie. Renji then tells Jackie to hit him with her best shot, and as she yells at him for his insolence, her second kick is stopped by Renji's fist, the aftershock easily destroying a nearby column. He then attacks her with the hilt of Zabimaru, telling her that her lot "just doesn't cut it".

Renji carries her while searching for a way out of Yukio's dimension. Jackie later regains consciousness, stating that a way out will not appear until one of them is dead. Realizing that Yukio has been watching, she tells Renji to kill her, but he refuses and says they will escape together. Thinking back to her childhood, Jackie states that she wishes that the people who saved her were good people like Renji. She sacrifices herself to save him.

Jackie survives her suicide attack, but at the cost of her Fullbring abilities. She finds Giriko's body and buries it before meeting up with Yukio and informing him of the situation. Although she agrees that she hated her former abilities, she admits to feeling envious of Giriko for getting to die while using his. When Yukio goes to walk away, she asks him to stay a while but he brushes her off, stating that he'll make his company bigger in three years and that he will employ the remaining members of Xcution since they were all a bunch of misfits that relied on his wealth.

Natural Abilities
Expert Hand-to-Hand Combatant: Jackie has displayed proficient skills in hand-to-hand combat during her training match with Ichigo, who is an expert at hand-to-hand combat himself. Jackie's style of fighting consists of kicking her opponent rather than punching or grappling them. She fights in this manner in order to quickly get her boots covered in dirt and blood.

Former Powers & Abilities
Spiritual Awareness: Jackie possessed enough spiritual power and awareness to be able to see Shinigami.

Trivia

 * In the second best bout poll, Jackie's fight with Renji Abarai ranked 53rd.
 * In chapter 471 of Jackie's past, her boots were black, but in the anime, her boots are white.

Quotes

 * (To Yukio Hans Vorarlberna) "It's true, I always did hate my ability. But strangely enough, now I've lost it I find myself envying Giriko, who managed to hold on to his until the moment he died. At some point I must have realized that these Fullbrings we bear are all that really holds us together. That must be why I'm feeling this way."

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Jackie Tristan