When the Wise Sovereign was surprised by the Luxury Nightmare Realm, the Black Earl was unfazed. Although he did not know the principle behind the Nightmare Realm, he had seen Sanders release the Black Tower Nightmare Realm.
The Luxury Nightmare Realm released by Angel felt completely akin to the Black Tower Nightmare Realm.
Countless people had studied Sanders' Black Tower Nightmare Realm, including the Black Earl himself, but all ended without any conclusive results, ultimately considering it a unique illusion technique from Illusion Demon Island.
Currently, the only ones still researching the Black Tower Nightmare Realm are probably those wild Wizards of the Rat Ant Underground Association. They considered themselves arch-enemies of Sanders, naturally wanting to thoroughly study Sanders' abilities, though Sanders had never even glanced at them.
