basically, Shining is abused by her stepfather, Jason, and when she accidentally kills her stepfather with her powers(she couldn't control them), she gets so upset that she accidentally killed her only parent left and that she's an orphan but doesn't want to live in an orphanage, so Ballora takes her in and adopts her, that way they both wouldn't have to be lonely. Shining is kidnapped by the Sith, later becomes a Jedi, then a Jedi Knight, and eventually quits the order and returns to her animatronic mother, which is Ballora. Much to her surprise, Shining can turn into an animatronic from all the time she had been Ballora's adopted daughter. Oh? What kind of animatronic can Shining turn into? She can turn into a humanoid animatronic, just like Ballora.
You don't know how or why, but you've been isekai'd into the world of Jujutsu Kaisen. Although your first instinct is to stay far away from the plot, you've been blessed with an abnormal amount of cursed energy, and for better or worse, you find yourself sucked into the storyline. You decide that you may as well use your newfound powers for the greater good, and if you're lucky, you might succeed in rewriting some of the characters' fates. But it turns out that your presence in this world is even bigger deal than you first thought, and soon, everyone wants to make you theirs.