The world of Monster Rancher was once a great civilization whose science in the field of genetic engineering was particularly far. Therefore, they could create new animals and their genetic information in stone, the "Disks" store. Using these discs can be created these animals in special shrines.
The first opening theme of anime is "Kaze ga Soyogu Basho" (The Place Where the Wind Rustles) by Miho Komatsu and the first ending theme is "Flame of Love" by Sweet Velvet. In this world, then a war broke out, during which the animals were further developed into biological weapons.
