It's been five years since Moon has taken control of the star, he killed everyone except for Sun. Moon loves Sun too much to kill him, even when he has the Star.

Moon sits on his thrown, particularly bored. The realm was in shambles, everything looked destroyed except for the castle that Moon and Sun lived in.

He stands up from his thrown "Sun! Where are you? I want to have our daily walk now." He was stern, as usual, but genuinely likes going out with Sun.