what is a simple domain jjk

A Simple Domain is a technique used in the anime/manga series Jujutsu Kaisen. It is an anti-barrier technique that creates a region around the sorcerer and is not imbued with any cursed technique. The technique neutralizes the sure-hit effect of the opponents cursed techniques, even while within their domain. The downside of this technique is that the user's feet must be planted in place for the technique to work.