Devil's Satisfaction

“My goal is one; to make you satisfy me,” the seductive Devil said. *** 17 years spent his life as a slave of the Vampires; Roman had always dreamed of freeing humanity from the 500+ years of slavery. It was his biggest dream since he was 4, but as he got older, he realized it was something impossible for him to achieve. One night, after a deadly attack by a group of mysterious gigantic wolves, Roman lost his life in the worst way he could imagine. He brought his anger, sadness, disappointment, grudge, and dreams to his death; he left the world with a swear and tears, without knowing he could get a second chance at life. A bewitching, beautiful, seductive Devil somehow saved him and was even willing to help him to achieve his biggest dream. From the Devil, Roman wasn't only getting a second chance at life; he also woke up with enhanced physical strength and new abilities, which made 'impossible' impossible to sit next to his dream to free humanity. But for these, Roman had to satisfy the Devil too, and that was what challenged him the most. Would it be possible for him to both fulfil the Devil's Satisfaction and achieve his dream?