Shadow appears along with light. When light disappears, its name is darkness.
In the 194th year of the Sangyao calendar, the separatist war that had lasted for more than 100 years finally came to an end, and the world was divided into five regions. Sub-Tanlia Autonomous Region, Jorram, Valford Republic, Dome and Kantsvia Empire. Although the structure of the world has been set, the wars have not ended, and regional wars of aggression have occurred from time to time. Until the 217th year of the Sanyao calendar, the empire launched a massive crusade on the grounds that the autonomous region massacred innocent residents of the imperial city of Rigel. The war lasted for two years. On April 8, 219 in the Sanyao calendar, the war ended on the condition that the autonomous region surrendered and the border city of Bierna was ceded. The world calmed down after that.
Gradually, people forgot about hunger and pain and began to enjoy the peaceful life under the sunshine. But where there is light, there will be shadows. The stronger the light, the easier it is for darkness to grow in the cracks. A huge organization has long taken root in the darkness of the world, mocking this flashy world like a ghost.
They were originally a pair of ordinary brothers, but the war divided them into different worlds like a chasm. One became the divine son who redeemed people, while the other became the shadow of the world, rooted in darkness. When the two meet again after a long separation, what kind of history will they write?