Jujutsu Kaisen Modulo Chapter 21 was absolutely huge for the story in many ways. Not only did it advance the exciting overall plot of the cursed energy optimization story, but it also advanced the overall character arc of Dabura Karaba.
As fans know, Dabura is an absolute prodigy when it comes to combat, and his cursed technique is one of the most dangerous fans have seen in all of Jujutsu Kaisen. In JJK Modulo chapter 21, Dabura has taken this cursed technology to its absolute pinnacle and developed a mighty domain expansion. Fans didn't expect Dabura to create a domain expansion so early into the story, but his genius is such that it only took him a matter of chapters to create such a complex ability and become one of the strongest in the entire world. Dabura is now an absolute monster that can stand shoulder to shoulder with the likes of Gojo and Sukuna, and even Yuji Itadori in the current timeline. His domain expansion might just be the most overwhelming fans have seen in history.
Dabura Karaba has pushed itself beyond all limits in JJK Modulo
Dabura developed the Reverse Cursed Technique and the Cursed Technique Reversal Against Mahoraga
Dabura Karaba is quite easily one of the most talented wizards fans have seen in history. Even before Dabura learned how to use the various advanced techniques Earthlings use with their magic, he was an overpowered monster. Not even someone as strong as Dura could stand and fight him on Simuria, and that was a testament to his overwhelming power.
For the first time, Dabura Karaba will dance across the battlefield at Sublight speeds. — Narrator
Dabura's cursed technique with murderous intent and light is such that he can basically one-shot the vast majority of characters. That is exactly why Mahoraga was the perfect opponent for him. In the fight against Mahoraga, Dabura was really pushed to his limit, and he might even have lost the fight. This battle forced Dabura to evolve beyond his limits, and at first he learned to use his cursed energy with his own body and move at sub-light speeds.
After that, Dabura learned to use the Reverse Cursed Technique, as well as reverse the flow of cursed energy through his body's circuit, giving him access to the Cursed Technique Reversal and turning his light into darkness.
All of this made Dabura one of the most dangerous wizards in all of JJK's history and someone who could stand next to Gojo and Sukuna. The only step for him was to take his technique up a notch and invent a domain expansion from scratch. That's exactly what Dabura did in JJK Modulo Chapter 21, and now he also has an overwhelmed domain expansion.
Dabura has unlocked domain expansion now
Dabura's domain expansion is called reverse crossover
IN JJK Modulo in Chapter 21, it appears that Dabura Karaba has evolved beyond all limits and created a domain expansion. To create a domain expansion, Dabura had to learn barrier techniques. It seems that this requirement was met by observing the spaceship in which he came to Earth and by noticing its barriers. Dabura grasped the concept of creating barrier techniques and imbued his innate technique into the barrier to create a domain expansion. Now, Dabura's Domain Expansion has appeared in the story, and it goes without saying that it's a big turn of events for his overall character arc.
Hey, what on earth do you call this technology? — Dabura to Mahoraga
Dabura's Domain Expansion has a rather complicated name. In Japanese, it is called Yūmeikyō Sakahoko, which literally translates to “Defined Crossing of Light and Darkness.” Clearly, Dabura's domain expansion is a space where he can manipulate his cursed technique and possibly even its reversal, and that's what really makes it deadly.
Dabura's domain is tied to light and dark
Dabura can combine light and dark
While the full powers Dabura's domain expansion remains invisible at this timeit is clear that within the domain he can freely manipulate light as he pleases, and even darkness. He can possibly put these two together, as the domain itself refers to an intersection of light and dark. This can be similar to Gojo's Hollow Purple, where he fuses the lapse and reversal of his technique to create a Hollow Technique.
I want to fight more! I want to grow more! I want more power! — Dabura Karaba
For Dabura, the domain expansion can be something similar, allowing him to create a black hole-like entity that destroys all forms of existence itself. If this were to be the case, then Mahoraga absolutely cannot withstand what Dabura will throw his way next. Given the nature of the domain, Dabura himself will be pushed to a whole new level with a sure-hit technique that Mahoraga can't adapt to or escape from. If the power of the technique is great enough, it should be able to take out Mahoraga in a single blow and end the fight for good.
Dabura's Character Arc Beyond The Mahoraga Fight
Dabura can soon fight Yuji Itadori
Considering that the fight between Maru and Tsurugi officially ended in JJK Modulo chapter 21, it makes sense for the next chapter to officially end the fight between Dabura and Mahoraga as well. Fans absolutely can't wait to see it happen with a mighty domain expansion screen right at the end.
Dura, I too will become a warrior. — Dabura Karaba
Oddly enough, fans are incredibly anxious to see what happens to Yuka Okkotsu, who is in a state of suspended death at the moment. It will also be interesting to see how Dabura progresses beyond this fight, as his whole character has changed a lot. While Dabura once despised fights, he has now come to enjoy them. Perhaps, Dabura will be looking for another challenge after this fight and will continue to clash with Yuji Itadori if so, fans could see the clash between two powerful domains soon enough in the story.
Ever since Yuji Itadori returned to the story, fans have been pushing for a fight between him and Dabura. After the battle against Mahoraga ended, it seems that this fight will come to fruition very soon. It would also be the perfect way to end the story of Jujutsu Kaisen Modulo, as it would allow the former protagonist and the new strongest to clash and test their powers against each other. In another possibility, Maru's cursed technology could create a catastrophe so massive that the Simurians and humans must find a way togetherallowing for a true union between the two races and the perfect extermination of all cursed spirits once and for all. Either way, JJK Modulo will only get more exciting with each passing chapter.
Jujutsu Kaisen Modulo Chapter 21 release date is February 8, 2026. Chapter release time is midnight JST, or 11:00 AM ET (8:00 AM PT). Fans can read the chapter for free on Manga Plus and the Shonen Jump app.
