Ruyue's victory, Elena's victory, neither were the first to happen.
The first victory actually happened in a place nobody could expect, a place where nobody was watching.
The first victory of the war took place when a group of Demigods from the palace whose names had been written in no history books arrived at their target location and eliminated those they were ordered to eliminate.
They didn't make a fuss over it. They didn't try to gain recognition. They completed their task and returned to the palace without another word.
That was the start of it.
All around the world, countless battles took place.
Void Palace and Straea had been at odds for too long for either side to hold back as they finally clashed head-to-head.
Sometimes they lost, sometimes they won. People on both sides died at a relatively consistent rate for the most part, but once the real experts of the palace made their entrance, the scales tipped in their favor.