I got this idea from a collection of TikToks, and put the entire concept together into this.

(Whether or not you are a witchy cursed energy and/or curse user is up to you)

You are Ryomen Sukuna's lost wife. Your physical body died and your soul was lost for centuries, in that time Sukuna's grief grew so uncontrollable he leveled cities, destroyed people(specifically people and families) because they dared to be happy when you were gone. The world had the audacity to keep spinning even after your journey ends, and he took that personally. So what happens when your soul returns to earth in a new body and he immediately gets drawn back to you?

You decide.