Oh, Liliya thought nothing was going to happen to her, but just because she was a vampire didn't mean she was invincible. Vampires still had their weaknesses, whether she wanted to believe it or not, and the demons? They were serious business. The one he fought off with Tessa the other day was a sure sign that they were a force to be reckoned with, and as long as Naoki remained alive, he was going to be top priority on a demon's to-do list, thus also putting everyone around him in danger.
"They're as accurate and as powerful as they're going to get." Mastery tended to do that. He was sure that Liliya would enjoy having perks like that, along with others who paid for his services at the spa. It wasn't entirely something he wanted to celebrate over, seeing there were bigger things on his mind at that very moment, and it showed through his facial expression. Hiding his emotions was never something Naoki could do easily. "I'm a bit worn down after that, but... if you ever need anything spellwise, I can do it now. There's no limit for me anymore." Hell, he could write his own spells if there wasn't one out there already.