The dragon swivels his head at both the arrival and the challenge, golden eyes narrowing at the small Dragonslayer. Almost easy to mess is the scar along the right side of its head as if something sliced it there too and when it GLARES down at you Natsu, there's that split second where that feeling of familiarity intensifies.

... and then there's a massive amount of fire exhaled in your direction - though it looks like it means to just block off the tiny human anyway.(pff as if that's a worry for you!) But there's no response, verbal or otherwise, beyond that growl. The voices in the building do cut off with a number of screams from the people inside though, and then pounding footsteps of one person, who may be rushing to see what was going on.