The last living member of an ancient species of giant guardian moths, summoned forth an egg so that her offspring could continue her legacy. When The Elias, priestesses, on Infant Island are threatened Mothra can emerge again to save them
Millions of years ago, a giant three-headed dragon called King Ghidorah arrives on Earth and wars with a species of enormous and highly advanced moths. The moths were the protectors of the "Elias", a race of tiny, humanoid beings who inhabited the planet. After the ensuing battle, Desghidorah was defeated and sealed under the Earth - at the cost of almost all life on Earth.
Off the coast of Japan, the environment has been ravaged with poisonous starfish-like creatures called Barem. Meanwhile, the Elias sisters, Moll and Lora, survey the destruction and enlist the help of three children, who had just discovered and befriended a strange little creature dubbed "Ghogo" to help find the mysterious treasure of Nirai Kanai, an ancient lost civilization, to save the Earth from the declining environment.
Moll, Lora, and Belvera, the Elias sisters, are at odds again. Belvera seeks the secret power of their ancestors, tiny triangular power units that transform the sisters' small daggers into powerful swords. She steals the three units from Infant Island but is thwarted by Fairy Mothra, Moll and Lora's pet, and fails to retrieve the proper triangle for her sword (each power unit will only work for a specific sword). Moll and Lora end up with a unit that transforms Moll's sword.
