The story of Emerald Dragon requires a general understanding of the history of the world it takes place in. The two key places to know are Ishuban and Dragulia.  Dragulia is the place where dragons who escaped Ishuban and it's curse still live, it is also the birthplace of the hero of the story, Atrushan.  Ishuban was a land rich in nature with a mild climate at one time called a sanctuary. One day there was a curse upon the dragon clan in Ishuban that forever soiled the land and brought about the age of war.

     2000 years ago the two major races in Ishuban were the Horus and the Dragon Clan. There was a great war for control of the land at the end of which both races decided to coexist peacefully. One day the Horus completely disappeared. Shortly after the land was cursed and brought about the death of the dragon clan as the curse spread across the land. Following this humans arrived in Ishuban and began to thrive.

     In the present, humans have come to prosper in the land. But recently a new race, the demon clan, has appeared in the land. Yet again Ishuban becomes the battleground for a new war of dominance.

     The main questions unresolved in this history are how the cursing of the dragon clan occurred and what happened to the Horus. These questions become the beginning of the framework that turn the gears of Emerald Dragon's plot.

     One day in Dragulia a ship crashes offshore, the sole survivor is a young human girl who has lost her memory. The White Dragon decides to name her "Tamryn," an ancient dragon word for "Purity," and raise her as one of his own in the dragon clan. One young dragon named Atrushan is about the same age as Tamryn and they become close friends.

     Some years later, Tamryn decides that she has to return to her homeland of Ishuban despite her and Atrushan's growing feelings. A promise is made between them that if she is ever in trouble, she should blow on the horn that Atrushan gave her and he'll be there. The sun sets and the next day Tamryn returns home.

     When Tamryn returns to Ishuban it is already torn apart by war that has gone on between the demon clan and the humans. The land's only remaining kingdom, Ervad, has become the protector of all remaining people from the demons. Over the next three years there's a distinct shift in the power on the continent, namely that the demons are winning.  It's during this time that a new general appears to lead the demonic troops. His name is Ostracon. While being human, he allied himself with the demons and through his military genius became a general of the demonic troops and the trusted aid of the Devil King, Galshia.

     Today, the last line of defense has become the stronghold of General Sada in the Ervad kingdom lands. If Ervad falls, all remaining humans will be killed and the land will plunge into darkness where the demon clan will thrive. Tamryn is now living in Urvan, a town in the Ervad lands that is currently out of the demon's reach where she nurses soldiers sent there to recover. One day, she finally decides she needs Atrushan there and blows on the horn. "Please hurry, Atrushan!"

     The horn reaches Atrushan in Dragulia. The White Dragon sends him to the grave of the dragons to recover the Silver Scale which will allow him to enter Ishuban without being killed by the curse. After taking the scale, he is told to beat it against his chest. When he does this, he is wrapped in a light and turned into a human.  The only way for the dragon clan to enter Ishuban is in a fragile human form where none of their dragon powers can be used.

     Atrushan, with the soul of a dragon and the body of a human, sets off to Ishuban to find Tamryn. He travels the land to Urvan in search of Tamryn. When he finally reaches the remote village, the story finally beings to unfold.