Due to mentally berating himself for, and I quote, 'creeping outside a goddamn middle school', Nagato didn't really notice Kaiya's approach what with his facepalming and his exasperated fidgeting. In fact, it wasn't for a while that he had noticed the young lady whose attention he had grabbed earlier was right there. 

"Hm?" Nagato sounded quietly upon noticing the presence of the girl he had been interacting with earlier. It was apparent that the blonde was much... [i]shyer[/i] than the impression he had gathered of her. Nagato quickly ticked off every single pick-up line ('she was in [i]middle school[/i], and I'm [i]not[/i] a lolicon'), key foreign phrase ('She's in Japan, she should know Japanese.'), crappy party ice-breaker ('No, just no.'), vicious threat ('Let's try not to get kicked out of a town again, mmkay?'), and business term he knew. The amount of unique ways to initiate that checklist left him with... None. 

Well. Time for 'Plan B'.

Whatever that was.

"Why hello ojou-chan," Nagato greeted with a wave the warmest smile he could put on, using the formal Japanese word for wealthy, high-class females. Even if she wasn't really upper-class, it was pretty rare for a young girl, or any girl Nagato supposed, to not get a thrill out of being talked to like she was a princess. Besides, she was in middle school so that put her at.. 14? 13? Somewhere around there. The chances that she had the 'childhood spark' would up the probability of this greeting's success, to consider all things.

"Are you all alone?"

[i]'Okay, that sounded really creepy,'[/i] Nagato thought before adding, "it's not safe or right for a cute little girl to be out here all by herself."

[i]'Nice save,'[/i] he mentally affirmed, despite the fact he wasn't all that taller than her anyway. A few inches more and she probably could've been his height!