Весь мир медленно погибает из-за поглощающей его тьмы.

Но где-то на западе существует страна, которую не поглотил мрак, потому что в ней процветает алхимия. Туда приезжают выжившие люди и изучают эту давно забытую на их родине науку.

История вращается вокруг девушки Эски [ エスカ・メーリエ ] и парня Логикса [ ロジックス・フィクサリオ], которые приехали в эту страну. Познакомившись, они поклялись друг другу, что постараются предотвратить распространение тьмы...

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 alchemic 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.

One of the heroes is a young man who researched alchemy in Central, the other a girl living in a small town on the frontier. This girl's name is Escha. In the process of using her knowledge of ancient alchemy to help others, she was assigned to the Development Department. The young man's name is Logy. Having learned the newest alchemic techniques in Central, he requested a transfer to this understaffed town to make use of his abilities, and 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.

(Source: Tecmo Koei Europe)