Mortal City is extremely important to him, it is the location where the entrance to the higher plane of existence is located, if something had happened to it, all of his plans would be destroyed.
"Mortal City is doing fine, it is now a part of United Beast Kingdom, we have been protecting that location all of this time, it stood tall because all the supreme clans band together to protect that place." Shadowslash wasn't surprised.
The supreme clan would definitely return if Saint Monster World still exist, they only need to be strong enough to fight against all the insects, unfortunately for them, their world would definitely become a part of Gaia's rule.
He then looks at the people kneeling and proclaimed, "I Shadowslash have come to this world bearing great news, I will be eradicating all the insects! Your time filled with fear and despair would no longer exist! Believe in me and believe to all the soldiers brave enough to risk their lives for this world!"