The disguise technique was quite new, unexplored territory regarding techniques as far as Rui was concerned. The triggering mechanism was something that he had delved into before, but the actual techniques themselves were quite unlike anything Rui had learned before.
He had never heard of a skull-altering disguise technique before. Nor had he heard of disguise techniques that allowed one to completely impersonate another person without any problems.
That was why he was rather certain that most of these principles were probably something that Master Reina had developed herself over her long career as the Silent Shadow.
With such a powerful technique, he couldn't imagine just how many extraordinarily well-protected people she had managed to successfully assassinate. The numbers surely had entered the quintuple digits by this point.
Just thinking about it left Rui in awe.
"Can I ask you something?" He said to her out of the blue.
"Can you?"
