Conclusion and end of the story
In the end, Ace fully awakened the system that was formed by the consciousness of his mother, whose true identity was the creator of the Divine Realm.
Ace saved Charlotte and the two of them tied the knot, even having their own children, two sons and a daughter.
The Mystic Sage might be the furthest cultivation stage known to mankind, but based on the system Ace's mother had left for him, he knew that the Mystic Sage wasn't the end, but for the cultivation realms that laid beyond, it was a mystery as to how he would approach them.
The Nirvana Sect became the number one sect in the Divine Realm and elites flocked to join the Nirvana Sect.
Humanity and Demon Beasts co-existed in peace and accepted the existence of each other as Ace along with the other top experts, extended their reach to the blank space that surrounded the Divine Realm, in hope of finding other places and civilisations that could cooperate with them.
Sorry, but I've been finding it hard to continue the story, which is why I would like to conclude it here and start prepping for my next novel when I'm ready.