"How much blood is too much for you, Master?"
...
The words spoken in a whisper and heard by no one were the deciding factor in uncountable lives across the Realms.
10 years had passed since the Celestial Beasts had raged in their respective Realms.
Since then, Kami and the Lord of Shadows continuously supplied their factions with resources.
Although the Lord of Shadows always had an upper hand as he gifted trained soldiers to those in his support.
On the other hand, Kami failed to convince his mother to join the war. He tried time and time again and hadn't ever given up. Despite his persistence, his mother refused to involve herself in the war.
Although it started with the 8 Realms closest to the Land Above Realms, the timbers of war slowly started burning in the smaller, farther ones as well.