Axel then said to him, "Okay babe, don't worry, I'll bring him back as soon as he passes out again."
When Kevin had talked about his will to survive and when he remembered that these nightmares he had were probably due to the month of torture he had suffered, he couldn't help but think of his father.
His father, who was the god of destruction, must have a way to find out what world Kevin was from, and even if he didn't want to destroy this world because Kevin had done everything he could to protect it from criminals and corrupt people, that didn't stop him from wanting to kill, or rather slaughter, all those who had been responsible for his track over the last 5 years.