Gojo, Geto, Yuta, ...
Who is Yuki?
This powerful technique would've taken out Sukuna if it weren't for his cunning lies. Fortunately it got its proper time to shine by unsealing Gojo.
What is Jacob's Ladder?
His dream of a world without curses is admirable... but his means are downright insane.
Who is Suguru Geto?
Trading cursed energy for unimaginable strength seems like a pretty good deal the way this man and his niece uses it.
Who is Toji Fushiguro?
Surprisingly the first domain expansion we ever see.
What is Malevolent Shrine?
Eso, Kechizu, ...
Who is Choso? (Other brothers may be accepted depending on my mood)
This technique is usually fairly mediocre, but its user in the series was fortunate enough to have a Heavenly Restriction enhancing it greatly at the cost of his body.
What is Puppet Manipulation?
This sorcerer found himself stuck inside a tub for the majority of his life due to his Heavenly Restriction. He would be deserving of more pity if he didn't risk all his friends' lives for a chance to escape.
Who is Kokichi Muta / Mechamaru?
Self-labelled as useless, she probably isn't too far off from that description as seen with her binding vow fueled attack on Kenjaku being stopped with just his palm.
Who is Miwa?
Only being unlocked post-mortem as a curse, it has one of the most powerful sure-hit moves seen in the entire series.
What is Time Cell Moon Palace?
Dhruv, Kurourushi Ryu, ...
Who is Uro?
Destroying the users physical form, replacing it instead with pure electrical energy, this technique can only ever be used once.
What is Mythical Beast Amber?
A young girl who knew she was destined to essentially die, only to find some hope for her future just to have it ripped away by the one who left it all behind.
Who is Riko Amanai?
Being birthed from a Cursed Technique, this animal-like sorcerer has no technique of his own.
Who is Panda?
This Bankai Training-esque domain keeps their opponent on their toes as the user can choose the sure-hit from a multitude of techniques in their disposal.
What is Authentic Mutual Love?
Arata, Mai, Miwa, Todo, Mechamaru, Momo, ...
Who is Noritoshi Kamo?
DAILY DOUBLE
This technique is incredible difficult to utilize due to it's inefficient cursed energy usage. Even when we see it used to its full potential Sukuna makes quick work of it with the Ten Shadows technique.
This Ancient Sorcerer with a crazy hairdo had an insane thirst for hunger. Only to find himself losing his appetite when Sukuna appeared before him.
Who is Ryu Ishigori?
Despite her not having a technique, she is one of Jujutsu Society's top assets being the few capable of healing.
Who is Shoko Ieiri?
Besides Sukuna's, this is the only other open domain we know of.
What is Womb Profusion?
Nanami, Maki, Megumi, Toji, ...
It can only be activated by first drawing your opponents blood. Then it allows you to see a few moments into the future.
What is G Warstaff?
This character took their own life after not being seen in the manga for a dozen chapters... It was controversial to say the least.
Who is Uraume?
One of Gojo's oldest, and closest friends and despite the way Gojo treats him, Gojo truly values him as seen in the charge up for the 200% Hollow Purple.
Who is Kiyotaka Ijichi?
The science behind this domain's sure-hit is all theoretical since we really have no clue what a perfect sphere would really do.
What is Threefold Affliction?