Jujutsu Kaisen Modulo Chapter 21 was absolutely massive for the story in many ways. Not only did it drive forward the exciting overarching plot of the story around the optimization of cursed energy, but it also drove forward 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 ones that fans have seen in the entirety of Jujutsu Kaisen. In JJK Modulo Chapter 21, Dabura has taken this cursed technique to its absolute pinnacle and developed a mighty Domain Expansion. Fans weren't expecting 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 craft such a complex ability and become one of the strongest in the entire world. Dabura is now an absolute monster who 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 overpowered that the fans have seen in the story.
Dabura Karaba Has Pushed Himself Beyond All Limits In JJK Modulo
Dabura Developed Reverse Cursed Technique and the Cursed Technique Reversal Against Mahoraga
Dabura Karaba is quite easily one of the most talented sorcerers that the fans have seen in the story. Even before Dabura learned how to utilize the various advanced techniques that earthlings utilize with their sorcery, he was an overpowered monster. Even someone as strong as Dura could not stand and combat against him on Simuria, and that was proof of his overwhelming might.
For the first time, Dabura Karaba will dance across the battlefield at Sublight speeds. — Narrator
Dabura's cursed technique of Murderous Intent and Light is such that he can essentially one-shot the vast majority of the characters. That is precisely why Mahoraga was the perfect opponent for him. In the battle against Mahoraga, Dabura was truly pushed to his limit, and he could even have lost the fight. This fight forced Dabura to evolve beyond his limits, and at first, he learned how to utilize his cursed energy with his own body and move at sub-light speeds.
Following that, Dabura learned to utilize the reverse cursed technique, as well as reverse the flow of cursed energy through his body's circuit, which gave him access to Cursed Technique Reversal and turned his Light into Darkness.
All this made Dabura one of the most dangerous sorcerers in the whole history of JJK and someone who could stand next to Gojo and Sukuna. The only step for him was to take his technique a level beyond and invent a Domain Expansion from scratch. That is precisely what Dabura ended up doing in JJK Modulo chapter 21, and now, he has an overpowered Domain Expansion as well.
Dabura Has Unlocked Domain Expansion Now
Dabura's Domain Expansion Is Called Reverse Crossing
In JJK Modulo of chapter 21, it seems that Dabura Karaba has evolved beyond all limits and created a Domain Expansion. In order to create a Domain Expansion, Dabura had to learn barrier techniques. It seems that this requirement was fulfilled by observing the spaceship that he came to Earth in and by noticing its barriers. Dabura grasped the concept of creating barrier techniques and imbued his innate technique inside the barrier to create a Domain Expansion. Now, Dabura's Domain Expansion has appeared in the story, and it goes without saying that it is a great turn of events for his overall character arc.
Hey, what do you call this technique on earth? — Dabura to Mahoraga
Dabura's Domain Expansion has quite a complicated name. In Japanese, it is called Yūmeikyō Sakahoko, which literally translates to "Defined Crossing of Light and Dark." Quite clearly, Dabura's Domain Expansion is a space in which he can manipulate his cursed technique and possibly even its reversal, and that is what truly makes it deadly.
Dabura's Domain Is Tied To Light And Darkness
Dabura Can Combine Light And Darkness
While the full powers of Dabura's Domain Expansion remain unseen at this point in time, it is clear that inside the domain, he can freely manipulate light as he wishes, and even darkness. He can possibly put these two together, since the domain is itself referencing a crossing of light and dark. This could be similar to Gojo's Hollow Purple, where he fuses the lapse and the reversal of his technique to create a Hollow Technique.
I want to fight more! I want to grow more! I want to gain more power! — Dabura Karaba
For Dabura, the Domain Expansion could 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 is going to throw his way next. Given the nature of the domain, Dabura himself will be powered up to a whole new level with a sure-hit technique that Mahoraga cannot 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 Could Fight Yuji Itadori Soon
Given that the fight between Maru and Tsurugi officially wrapped up in JJK Modulo chapter 21, it makes sense for the next chapter to officially wrap up the battle between Dabura and Mahoraga as well. Fans absolutely cannot wait to see that happen with a mighty Domain Expansion display right at the very end.
Dura, I will become a warrior too. — Dabura Karaba
Curiously enough, fans are incredibly eager to see what becomes of 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, because his entire character has shifted greatly. While Dabura despised fights at one point, now, he has come to relish them. Perhaps, Dabura will seek another challenge after this fight and go on to clash against Yuji Itadori in which case, fans could see the clash of 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 wraps up, it appears that this fight is going to be realized very soon. It would also be the perfect way to end the story of Jujutsu Kaisen Modulo, because it would allow the previous protagonist and the new strongest to collide and test their powers against each other. In a different possibility, Maru's cursed technique could end up creating a calamity so massive that the Simurians and the humans have to find a way off together, allowing for a proper union between the two races and the perfect eradication of all cursed spirits once and for all. In either case, JJK Modulo is only going to grow more exciting with each passing chapter.
Jujutsu Kaisen Modulo Chapter 21 release date is February 8, 2026. The release time of the chapter 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.