Water sources go dry. Plants wither and die. All creatures thirst and starve. The blue oceans turn to sand, and the life of the sea no longer has a place to call home. Yet still, the sun continues to shine, mercilessly drying up what little water remains in the earth. Slowly, but surely, everything fades away to nothing in this Dusk World. In the Dusk Sea that drains people's will to live lies a town of oasis located on the south. Two young alchemists, with challenges that differ between each one, move forward together as they pursue the truth behind the Dusk once they cross paths.