Both the sun and the moon have changed. Sun and Moon once dubbed oranges (that is, you can search for "C Orange"). Later, after the fire, Orange Jun seemed to say that he didn't want to dub, or broke up with his heart or something. It seems that they also said that they didn't want to dub others with their own voices, and then the voice of the sun and the moon changed. You can review it in the video of orange dy. It's written in it, and it's also spoken on the live broadcast.