An amphibious mamono known for their leaping ambush strikes against human male travelers. Those caught in their grasps are subjected to slimy mucus-covered pleasure for hours.

In a mystical world teetering on the edge of extinction, two harmonious yet rival races—frog and toad girls—face growing tensions as their survival depends on the long-awaited summoning of a human male; but when a century of hope is shattered by suspicion and conflict, a blinding light heralds his arrival, igniting a desperate scramble to claim the savior destined to decide the fate of both races.