This has always been the truth that Kane resists the most deep within his heart.
From the very beginning, Kane wasn't important; he was merely a consciousness born to deceive the sealing ceremony, and could be discarded once his mission was accomplished.
"It was you who made me see another possibility."
Kane said sincerely, "You made me pick up the parts that belonged to 'humans' and even gave me courage."
He could easily return to the Empire after the Ophira incident, wandering through major cities as before, or find another civilization on the brink of collapse, stirring the people there to satisfy his desires.
But in his view, that would become the past Kaisaros.
Trapped in an unknown place, seeking fulfillment through illusory "stories."
In the world of illusions, victory is meaningless.
It can't change the past or the current situation of the Gods; it's just a way of self-delusion.
For Kane, the dungeon still has a mess left unfinished.
