Rebirth of Mothra II

The fairies from Infant Island discover a lost city and a giant monster attracted to environmental calamities. As they journey to find the treasure of Nirai Kanai, their ally Mothra battles the sea monster Dagahra, which was created to manage pollution before it went rogue. Meanwhile, Belvera, the sisters' vengeful sibling, manipulates fishermen to get the treasure for her diabolical plans, leading to a showdown between Moll and Lora, Ghogo's discoverers, Mothra, and Dagahra.