和平的時代來臨後，世界上多了一種稀有的魔法生物——天恩。民間傳說，稀有的魔法生物「天恩」是命運在人絕望時賦予的恩典。擁有天恩的音樂家羅丹·伊亞一直以來都渴望人們受傷的心可以獲救。在實現理想的過程中，他卻意識到和平的背後有陰謀在蠢蠢欲動。

A long time ago, in the human continent, there was an ancient city in the north called the Dark City. The night there was very dark because there were no lights in the hearts of the people, and there lived many bad people, countless of them.

很久很久以前，在人類大陸上，北方有一座古城，名叫黑暗之城。 那裡的夜晚很黑，因為人們的心中沒有光明，住著很多壞人，不計其數。

Because the heart of the people are so bad, the neighboring countries all think that the dark city will be wiped out by natural disasters. However, after many years, the dark city still exists, and no one knows the reason.

由於人心太惡劣，周邊國家都認為黑暗之城會被天災毀滅。 然而多年過去了，黑暗之城依然存在，無人知曉其中的原因。

The neighboring country decided to send a clever and witty spy to find out the reason why the dark city is not destroyed……

鄰國決定派出一名聰明機智的間諜去查明黑暗之城沒有被摧毀的原因……

(The above story is translated using Google, please let me know if there are any deficiencies)

（以上故事使用google翻譯，如有不足還請指教）