In the battle of Thalassa, the army of Yaoqing faced the Borisin.
The newly re-established "Dharma Realm of the Ten Directions' Radiance" calculated a result that was impossible to believe: instead of mobilizing Yaoqing's powerful, battle-hardened fleet and its million soldiers, they should call for aid from the Xuanzhu Guard of the far distant Xianzhou Fanghu.
This ran counter to ordinary military doctrine, and in the end the generals of course chose the first option.
The Diviners of Yuque in the rear would study the arcane calculations deeply and then present the results to the Celestial Generals, to be used as the basis for their decisions. This had always been the tradition.
But when the divination result ran contrary to common sense, he resolved to go to the front himself and verify it.
Disguising himself as a traveling merchant, he slipped into the camp of the local sea dwellers.
When the Borisin surrounded the sea dwellers, he stepped in to help them, and in the end he paid with an arm, but in exchange he gained the sea dwellers' trust. From what they told him, he learned a secret that had never been recorded in any Bestiary:
Under the disturbance of the moon, the "Demon Wave" would engulf the battlefield one month later... The Yaoqing army, unskilled in naval warfare, would certainly not be able to hold, and only Fanghu's Xuanzhu Guard, well versed in the waterways, would have any chance of victory.
On the day he returned, beneath his sleeve was a prosthetic arm.
The Diviners of Yuque had always cherished their own hands, and even after finishing a divination they would apply a hand-protecting salve handed down from ancient times.
But having lost an arm, he could no longer calculate as meticulously as before, and every time he turned the Astral Chart it gave off a hollow sound.
That hand was always cold, just like his divination results, which grew ever more accurate.
Gradually he came to see the whole picture of the road ahead, greater than anything he had imagined...
Fate cannot be resisted, and there is absolutely no possibility of turning it around.