War of the Bound Chest

Centuries ago, Hyrule was ravaged by evil forces until the Picori, a race of tiny creatures, bestowed a young hero with the Picori Blade and the Light Force, using both to trap the world's evils in a chest. The grateful people of Hyrule would hold an annual Picori Festival, with legends stating that a door between their worlds would open every 100 years, allowing the Picori to return.