Kyodai jûjin no komoriuta

Sincline travels to the planet Meduse to acquire large creatures called Gorgons to be converted into Beastmen, for they possess a natural ability to turn their attackers into stone. But upon arrival he finds nothing but scores of dead Gorgons, all wiped out by a virus outbreak. A surviving female is eventually found, and Sincline captures her while she buries her dead...