The Warriors in Black are fighters gathered from diverse alternate timelines, empowered by wishes granted through the Dark Dragon Balls by Dark Shenron. Serving under Aeos, the former Supreme Kai of Time, their core mission involves aiding her in overseeing the Super Space-Time Tournament, designed to establish one "True History" by erasing all others.
Known members include Xeno Bardock, an incarnation of Bardock; the Future Warrior in Black, an alternate Future Gohan; the Namekian Warrior in Black, an unidentified Piccolo Jr.; and Vidro, a Glass Tribe survivor. Each joined Aeos after profound personal tragedies in their own timelines, seeking power and purpose through her cause.
Xeno Bardock, the first recruit and a "living singularity," was tentatively convinced by Aeos. He first appeared in the Pseudo Universe to save Goku from the Crimson-Masked Saiyan, later fighting alongside Goku and Vegeta against Crimson. Afterward, he reported the Pseudo Universe's destruction to Aeos, confirming he saved his son.
The Future Warrior in Black originates from a timeline where Future Gohan failed to protect Future Trunks and Future Bulma from the Androids, leading to their deaths. Consumed by survivor's guilt and self-loathing over his perceived weakness, he accepted Aeos' offer of Dark Dragon Ball enhancement. This power became his sole focus, leading him to adopt his new identity and sever ties with his past.
During the Supreme Kai of Time Saga, the Warriors in Black restrained Chronoa to prevent interference with Aeos' plans. They participated in the Super Space-Time Tournament, announcing rules and competing in the second round. The Future Warrior in Black confronted Super Saiyan God Xeno Trunks in a ruined cityscape mirroring his apocalyptic timeline. Discarding his cloak and mask, he revealed himself as Future Gohan, recounted his tragic past, and declared strength his only remaining value, wielding Dark Dragon Ball-enhanced Super Saiyan and Super Saiyan 2 transformations. Despite his resolve, Xeno Trunks defeated him, rejecting his philosophy of sacrificing timelines for one "true" history.
The Piccolo incarnation and Vidro fought but were also defeated in the tournament. When the dark sorcerer Demigra invaded and unleashed empowered villains, Aeos and the Warriors in Black allied with Chronoa and the competitors to repel the threat. Witnessing the heroes' efforts and Demigra's danger caused Aeos to abandon her goal. The Warriors in Black, including the Future Warrior in Black, reconciled with their actions and made peace with the heroes. Aeos dissolved the tournament, and the group departed with her.
The Warriors in Black, including the Future Warrior in Black, appear in the *Super Dragon Ball Heroes* video game and associated promotional media. In the game, the Future Warrior in Black utilizes abilities like "Dark Dragon Ball Boost" and accesses Dark Dragon Ball-enhanced Super Saiyan and Super Saiyan 2 transformations.