Shadowbreaker

The name of this world is Hunyuantian, which is divided into two major areas: the light realm and the dark realm. In the year 501 of Tianyuan, Guangming Miancheng, the lord of the Heavenly Palace in the light realm, and the immortal demon king Demon Daozi, the lord of the dark realm, died together. The color of the world changed. As a result, wars continued for decades on the border between the two realms. Afterwards, they reached a famous contract, the "Contract of Unity", agreeing to reconcile for a hundred years without conflict with each other. As time passed, the deadline of the contract was getting closer and closer, and the forces of the two realms began to prepare for action again.