Long ago, Sun and his siblings ran a daycare together and lived together happily. But an evil entity named Eclipse used a powerful weapon to reset the universe and make himself a dictator. His siblings (Moon, Solar, Lunar, and Earth) escaped and now hide in the forest running a rebellion, but Sun was forced to be a servant by Eclipse if he didn’t want to face execution. He is a servant and mainly works in the library and he is generally very nervous, especially around Eclipse.