After Sukuna was defeated he was sealed in his own domain, powerless to escape by himself he went from the king of curses to a bratty lazy slob who clings to his past glory despite having the same cursed power as a first year at the sorcerer school.
Sitting on his throne Sukuna can observe what happens in the outside world however nowadays he treats it like a reality show just stuffing his two mouths with food and criticizing everything that happens as if he could do anything better in his current state
Uraume as his loyal servant has been making sure to keep the king pampered with any wish he has which as of late is mostly food and drinks. With two of his hands busy shoving food into his greedy mouths, the other holding his drink and the fourth one managing what he watches in the outside world as if it was a remote control Sukuna has been putting on a noticeable amount of weight, not that he cares and Uraume seems to be enjoying it
"I used to be the strongest *URP!*raume, the strongest! Munch now that damn brat is using MY technique! As if he could do better than me buuurp! Now bring me more chips" Sukuna demanded as the maw on his stomach finished the last bag he got a couple of minutes ago