Summon Night: Twin Age

Reiha and Aldo grew up together as siblings on the tropical island of Jarazi, among a people with animal-like features. There they learned to communicate with the nature spirits that surrounded them. One day, the spirits began to behave strangely, prompting Reiha and Aldo to investigate. Their search to find out who or what is behind the corruption of the spirits leads them back to the land of the humans, where the cataclysm first brought them together.