If he were to give up now, he wouldn't be able to take care of his sister and his two apprentices during their formative growth. He had intended on allowing them to acclimate themselves to the first realm before he ascended, but under these circumstances, he would be unable to do so without causing irreparable damage to the realm.

This wasn't something he wanted to see; after all, all that he gained, he had gained here. Furthermore, the first realm was meant to be a training...