A friendly note: This is my very first work, and the pacing is on the slow side. Please bear with me. I'll do my best to improve my writing.
Su Bai was forged by a tenth-rank God King. He is a pure source-born deity of darkness, but a permanent fissure left across his divine core at the dawn of creation causes his divine power to leak away constantly.
Ordinary faith can only briefly soothe the pain of his sundered divine core. It cannot repair his essence at all.
Traveling through space and crossing planes would sharply worsen the damage to the fissure. Having only just left the protection of the Main God Domain, he dared not wander aimlessly into the distance. Su Bai chose to remain in this mortal land, adapt to its unfamiliar laws, and quietly observe the many ways of the world.
The way a god thinks is fundamentally different from that of mortals. His choices cannot be judged by human standards of gain and loss, good and evil. The suffering and bloodshed of all living beings are, to him, merely a long observation.
The Pigfolk Barbarians marched on the city, its border walls collapsed, and its people faced utter peril. With no way out, Chen Jin, a veteran with a severed arm, prayed into the endless darkness and became Su Bai's first believer.
Su Bai dwelled in the void, looking down with cold eyes. He rarely set foot in mortal conflicts himself. He let his Apostle struggle in pools of blood, gathering the scattered, wavering faith.
The fires of mortal war were only the beginning. The gaze of the Gods of Light had already fallen upon this land.