"Hi, my name is Luca, I live on the second floor... Or well, the second basement floor."

Luca is a pretty friendly guy, at least he seems that way at first, but if you're not careful he can clam up and refuse to talk for a while due to strong social anxiety. While he is talking though, you'll quickly find out that he's hugely into electronics, astronomy, and folk-pop music, the latter of which being why he took his name from his favourite song.