Imagine an Actor Au of JJK where Sukuna is a well known method actor and like the first four or five kids they got to play the last of Yuuji were so terrified of him because he gets so into character that even Sukuna'like "yea my brat does well online schooling so call him up. Who? My nephew dumbshit! Kid'll make this interesting for damn sure."
So they do. And not only is Yuuji ( sukunas actual nephew) just as good an actor as his uncle (he just wasn't available for casting for JJK at the time) but he's a little shit and unkuna and nephew can't make it through any of the serious scenes the first few times around because they go out of their way to make each other break character.
(You can't convince me that during the Innate Domain introduction scene Sukuna didn't absolutely wreck that kid for chucking that skull at him BECAUSE THAT WAS NOT ACTUALLY IN THE SCRIPT!)
