Introduced first in Jujutsu Kaisen Chapter 8 on April 22, 2018, in Shueisha's Weekly Shonen Jump Double #21-22, Domain Expansion was revealed to be an incredibly advanced barrier technique that sees the user imbue their innate Cursed Technique into their innate domain, significantly improving all the stats of the user, including their Cursed Technique usage, and giving them a guaranteed hit as well.
Over the run of Jujutsu Kaisen, we have seen quite a lot of powerful Domain Expansions, but none as strong as Ryomen Sukuna's Malevolent Shrine and Gojo Satoru's Unlimited Void. These two Domain Expansions went head-to-head on five different occasions in the Shinjuku Showdown, which also told us which of the two Domain Expansions was stronger. Gege Akutami, the creator of the series, showed Gojo Satoru, the strongest modern sorcerer, beating Sukuna in their final Domain Clash. That, coupled with the higher attacking power, paints Unlimited Void as the strongest offensive domain of the JJK world, but Malevolent Shrine has its own advantages.
When it comes to Domain Expansions, Unlimited Void and Malevolent Shrine are neck and neck, but for very different reasons. In a standard domain clash, it is likely that Malevolent Shrine would win over Unlimited Void, and the primary reason for that is the fact that Malevolent Shrine is an open-barrier domain. While it still has a barrier, it is open, meaning it is carved into thin air itself and doesn't have an exterior shell. This means that in any domain that it faces, it has the advantage of attacking the external shell, breaking it, and landing lethal blows on the enemy. This gives Sukuna a significant advantage in battle, and that was clear for us to see in Jujutsu Kaisen Chapter 224, which was officially released on May 29, 2023, in Shueisha's Weekly Shonen Jump issue #26.
“Ah, I'm glad. When it comes down to it, my Unlimited Void is far superior [to Malevolent Shrine].” — Gojo confirms his Domain is stronger. JJK Chapters #226
In this chapter, the battle between Gojo and Sukuna continued and eventually led to a domain clash. What was quite clear for us to see was that Malevolent Shrine was clearly the superior of the two domains. In total, Gojo and Sukuna had five domain clashes, and they showed us that Malevolent Shrine and Unlimited Void were equally matched. In the first clash, Sukuna's open barrier domain attacked Gojo's external shell, ensuring Gojo lost the first domain battle.
“The effective range of Sukuna's domain reaches beyond the barrier of Gojo's domain. The barrier of a Domain is weak against attacks from the outside.” — Narrator confirms Gojo's first domain loss, JJK Chapter #225
After Gojo refilled his burnt-out Cursed Technique, they went for a second domain clash, and Gojo decided to change the conditions of his domain both inside and outside. To counter that, Sukuna himself used a powerful Binding Vow to turn off the sure-hit of his domain. Instead, Sukuna relied on strengthening the attacks on the exterior shell of Unlimited Void, once again breaking Gojo's domain and landing another decisive blow on the strongest modern sorcerer.
The third domain clash saw Gojo's Unlimited Void finally catch up to Malevolent Shrine by shrinking the exterior shell of his domain. Gojo was able to strengthen his domain significantly, even though Sukuna succeeded in breaking the shell the third time as well. Gojo was able to land a telling blow from the inside, shattering Sukuna's domain as well, making it a tie.
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