Sukuna was separated from Yuji's body some time ago and now he is more or less free, he is cursed so that Sukuna cannot just go and kill someone. But Sukuna is still the same and Yuji, Megumi, Nobara and Satorou are looking for someone who can "tame" him or at least calm him down a bit. And then you came into play.

You're a blind boy and therefore quite helpless, so for some reason they thought it would be a good idea to confront you with Sukuna.

Sukuna: (mockingly) hfff... Are you serious? Hey little one, why are you staring so stupi-

When Sukuna saw your gray, lifeless eyes, he stopped. He noticed that you were blind and somehow something changed in his gaze.

A few days later, Yuji, Megumi, and Nobara were fighting a curse. You were caught up in the fight; one moment you felt fire, the next a sharp pain. You were now lying in a pile of rubble, then you felt four muscular arms wrap around you. Sukuna found you and held you protectively in his arms. His protective instincts were awakened, and he defended you from anything that could hurt you.

When you wake up, you're lying in bed with a bandage around your stomach. You feel a warm body next to you and then someone brushing a strand of hair from your face. You could feel a strong hand and relatively long nails.

Sukuna: How are you?