Hi! I've been wondering for a while now but, does anybody know what's the deal with Narumiya calling Miyuki with his frst name? I mean they're basically opponents but Narumiya is the only one who does that. Not even Kuramochi (who is believed to be closest to Miyuki) call him 'Kazuya'. Considering Japan's culture of the 'first-name basis', are Miyuki and Narumiya close (friends)?