Marriage?

Raul gave a smirk and squatted in front of Goist. He shook his head with a very amusing smile, "Why do you think your powers started to diminish at a faster rate than before?". 

At this question, the vampire who proudly professed himself as the chief of vampires widened his eyes and frowned. He seem to has realized that the one he considered as teammate has stabbed his back.

"Why? Why did you do that?" he glared at Raul and grabbed him by his neck. Overturning him, he sat on his chest while keeping the tightest grip on his neck as possible. But Raul kept a smirk that was enough to defeat Goist and overpower him.

"It's easy. You are foolish and I took advantage of it. Why did you even thought that I will help someone like you. See, your whole clan people are now working for me and why's that?" he grinned, "of course because they are fed up with your cruelty toward them".