Star Ocean: Fantastic Space Odyssey synopsis

A young boy named Ratix lives on the quiet planet of Roak, unaware of the strife which is about to befall his home. Suddenly, a mysterious disease sweeps through the land turning friends and family to stone, and as his world crumbles, it is all that he and his friend Milly can do to trust strange new beings hailing from the ocean of stars to aid them in their quest to uncover the truth and deliver justice.