Jerome conveyed to Guin that he would patrol the area, but in reality, he was exercising the absolute authority given to him by his father. He realized that he would not suffer any backlash from using it.
Before he had breakfast with the others, he also had time to test it on his pack members and others. He could still use it without being hit by a backlash. Only when it hit Lionel did a backlash would attack him, and his muscles became numb to the point where he couldn't move.
Miraculously, his Supreme's aura could even suppress the evil creature of the Underworld.
The black wolf with hazel pupils stood tall and arrogantly as if he were the ruler of this world. He enjoyed his current position and appreciated the gift from his father.