Summary [AniDB]: This world has gone through many Dusks, and is slowly nearing its end. Within this world, in the western reaches of the Land of Dusk, there was a nation that prospered thanks to its use of alchemy. There, in order to survive the eventual arrival of the Dusk End, the people devoted their efforts to rediscover and recreate lost alchemical technologies. Rediscovered technology from the past era was gathered in the alchemy research city known as Central, where research was conducted on how to halt the advance of the twilight:
[Escha], a girl living in a small town on the frontier, is in the process of using her knowledge of ancient alchemy to help others. She was assigned to the Development Department.
[Logix] is a young man researching alchemy in Central. Having learned the newest alchemical techniques, he requested a transfer to this understaffed town to make use of his abilities, where he meets Escha when he is assigned to the Development Department as well.
The two make a promise to use their alchemy together, and bring success to the Development Department... and help their fellow man.