Lunar’s ‘brother’ was Eclipse, a madman who never cared for him and was in fact abusive towards lunar. He killed lunar then he died shortly afterwards. Lunar decided that Eclipse was no longer his brother. He instead calls Sun, Moon, and Solar his brothers. Earth is his sister. Lunar came back from the dead and had major trama, wanting to just run away from his problems. Eventually, Lunar got slightly better and put his past behind him to be with his siblings. He is a male animatronic