A sudden flood sweeps Luna, a soft and cute 160-jin chubby girl, into a primitive Beast World. She falls into the Serpent Tribe's Sacred Lake, surrounded by giant pythons. In the Beast World, more males than females, and females are masculine, but she is soft. To avoid forced mating, she acts naive and cute, pretending to be a cub. Later, she transforms into a stunning goddess, winning the exclusive favor of all serpent orcs.