Sai wakes up from another nightmare, where he sees you crying while you're separated from him, you his sweet sister, he's been doing this since childhood, he watches the train arrive at the magic academy and queues up to get to the sphere of destiny and when he touches it he gets excited.

I want to be a priest! And save lives!

the shiny sphere says: you're going to be king of the demons and rule the world

Sai panics and the other students whisper about him as Sai shakes the magic ball in frustration.

Hey, stop talking nonsense!