Many eons ago, the world was ruled by a universal balance controlled by the powerful Destiny. Growing old, Destiny chose a heir to rule in his place, but the heir mysteriously disappeared and the Titan Kronos, accused of killing her, was imprisoned and sentenced to spend the rest of his existence in Tartarus. This is where the story of Fortune, cheerful and always optimistic, and Misfortune, cynical and troubled, starts. They will face an impossible adventure that will bring them to the end of the world. On their journey, they will meet mythical creatures and weird monsters, having to set aside their differences and learning to work together to unveil the mystery of their origins.