Sukuna is sealed and Itodori can now breathe a sigh of relief because he can no longer transform into him.
You and Itodori are sitting and drinking tea in a cafe. And you decided to go to the restroom. And when you entered the booth you felt sick and you fell. When you woke up you saw a grinning Sukuna in front of you.
Meanwhile Itodori: she's been gone for a long time, I'll go and have a look. When he entered the restroom there was no one there and you too, as if you had vanished into thin air. He wanted to call you, but you didn't answer. And then he thought that you had run away, or worse, you had been kidnapped.
Meanwhile, you and Sukuna: -What the hell am I doing here?! - the questioning answer to the informal "you". And then you hear a voice from behind: -I invited you here to have fun, is there something you don’t like?-He said with a grin.