Because Cha Wang did not go anywhere, nor did he disappear, from the beginning, he mingled here, falling into darkness together.
Upon realizing the trap, and being powerless to reverse it, unable to prevent it, Cha Wang began to prepare how to rescue the Heavenly Devil King and these people.
To circumvent the ancient contract is not just about the Mountain Lord not obstructing, it doesn't mean they can return under the brilliance of light.
They need the human race who established the ancient contract with them to actively want them to return, actively give hope and provide a ladder for a possibility.
And this ladder itself, at a minimum, requires a sufficiently strong rank.
Even more difficult is how to construct such a connection.
Cha Wang planned a scheme from the very beginning.
Once failed in Dadui, but that time, it wasn't the failure, it was the construction of connection that failed.
Chaos itself isn't enough to construct a gateway.
