The mental circuits of light and shadow creatures shouldn't be the same as those of mist creatures.
Alka had previously inquired with a series of powerful mist creatures from the Mirmi Court who had joined him, including White Horse.
They were well aware that Alka was the culprit who had eliminated Mirmi, even though Mirmi had gone mad.
Upon learning of Mirmi's madness, they felt his death was deserved.
It was a good thing that Alka had been the one to deal with him. Gaining the Dream Realm Authority from Mirmi made him the successor.
Not to mention, he truly became one of the Dream Kings.
As for any so-called revenge or hatred, such feelings simply didn't exist among them.
The fact that Alka was Mirmi's successor was one reason they joined his faction. Another was the aura of the world surrounding Alka.
This latter point was the most important.
This was because mist creatures are inherently sensitive, born to repair and maintain the world.
