Hang on, so just to be clear, what happened was that the ROK agents drugged Kim Jong-Il, knocking him out, then began stuffing him into the box. Then, Kim Jong-Un walks in, sees what the soldiers are doing, says "Do whatever you want" and goes back to bed. The soldiers then knock Kim Jong-Un out and stuff him into the box with his father to ensure no witnesses are left behind. As such, both Kim Jong-Il and Kim Jong-Un are flown to the ROK.
Have I understood what happened correctly? If so, what is going to happen to Kim Jong-Un? ITTL, he was never anywhere near the levers of power, but could he still be prosecuted for complicity in his father's crimes?
If I have misunderstood, what actually happened here, and is Kim Jong-Un still back in China? If so, what happens to him next?