The Big Brother Plan... had fallen through again!
Though this was far from the first time it had failed, whenever the flame was snuffed out, Satoru Gojo's obsession rekindled that hope from its ashes. And so, he suffered one blow after another.
Satoru Gojo couldn't help turning to look behind him, hoping to vent his feelings to his big sister. But the moment Sukuna saw it, he gritted his teeth and charged straight at him, throwing a fully wound-up punch.
Bam!!!
His ferocity was unmatched. Though Sukuna said nothing, the words he wanted to express were practically etched onto his face.
That girl got distracted while fighting me.
And now you had the nerve to get distracted while fighting me too!
Sukuna's sudden punch nearly struck Satoru Gojo in the face. Fortunately, Gojo reacted at the last instant and twisted aside to dodge.
Sukuna's fist skimmed past his cheek, almost brushing it, and the next wave of attacks swept in as soon as he dodged.
The Simple Domain beneath his feet was being crushed by Sukuna's domain at an astonishing rate. It would probably collapse completely in less than ten seconds.
Satoru Gojo pulled his attention away from his sister. He knew he had to catch up to her progress as quickly as possible, just as he had before.
A closed domain and an Open Domain.
If a domain's power was a mass of liquid, then a closed domain constructed an outer shell to hold that liquid inside a perfectly sealed container.
Why was Open Domain a divine feat? Building on that same analogy, it could keep the liquid gathered together without a container, maintaining its cohesion indefinitely.
When Chinatsu had proposed the theory of Open Domain to Satoru Gojo a few years earlier, he had frozen on the spot.