Madö King Granzört (魔動王グランゾート, Madō Kingu Guranzōto) is a Japanese mecha anime produced by Sunrise and Asatsu-DK. It aired on Nippon TV from April 7, 1989 to March 2, 1990. It also spawned two OVAs on 1990 and 1992 respectively.
In 2050, the moon was mysteriously terraformed after a great earthquake. Fifty years later, the moon is now populated with humans and has become a popular tourist destination. After a boy named Daichi Haruka arrives on the moon for summer vacation, he accidentally meets an old witch, V-Mei, and her granddaughter Guri Guri. Both of them are members of the endangered Long-Ears race, currently at war with the evil Jadou Clan, who are also planning to take over Earth. V-Mei gives a magic gun to Daichi and reveals that he is the chosen Madou Warrior destined to save the Long-Ears race and their land Rabiluna from the Jadou Clan.
With the magic gun, Daichi can summon Granzort, a giant robot called a Madou King with the elemental power of Earth, to fight against the monsters of the Jadou Clan. During their travels, Daichi, V-Mei, and Guru Guri are later joined by two other Madou Warriors, Gus and Rabi. Gus's magic bow summons the wind-elemental Winzart, while Rabi's magic top summons the water-elemental Aquabeat.