Jackie Tristan

is a member of the mysterious organization, Xcution.

Appearance
Jackie is a tall woman with short dark hair. She wears a dark long-sleeved shirt.

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, Giriko, and Yukio.

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 Ichgio's training is going well, which he denies. She also appears shocked that Ichigo knows of the existence of another Fullbringer. Jackie allows herself to be placed inside Riruka's fish tank for Ichigo's next training session, where she confonts him when he arrives and introduces herself properly to him, ready to battle.

Fullbring
Dirty Boots: Jackie activates her Fullbring by rybbing her boots together. when her Fullbring activates, her appearance changes, her black boots extend all the way up past her thighs and at the end leaking with black reiatsu, she gains white armours on her shoulders and forearms, black gloves, a long furry scarf and she also has a black hat with a piece of cloth hanging down from it covering the right side of her face. All the black parts of her Fullbring armour has black reiatsu flowing out of it.

Enhanced Speed
In this form, her speed is greatly increased, she is able to disappear right in front of Ichigo's eyes and then reappear again behind him; almost landing a hit on him.