In the end, no matter how much Cesar avoided this entity that continued to loom at his back, the twisted strings of fate seemed destined that these two meet directly.
He saw The Mansion at his back finally crashing into the influence of the Void, swallowing everything it passed by, obliterating everything on its path.
He could've gotten out of its influence with Cedeit beside him. They wouldn't have been able to risk themselves and play for the safety measures. Heck, they shouldn't be staring face to face with that abomination that was there to kill them.
But Cesar didn't do anything of it.
He rightfully believed that if just continued following Cedeit forever with his bidding, there would be a time when he might get discarded and find a suitable being to use.
But when that happened, Cesar knew he would be right on death's doorstep.
He didn't want that to happen.