Haruka comes off as a little too polite at first, almost coldly so. He always has either a neutral or a deadpan look on his face, and he barely talks to anyone or starts any conversations, but when he does he only says a few short sentences in a naturally throaty voice. He has a pretty cold attitude, but once you get to know him, you would get a glimpse of his more trustworthy and dependable side. But that would take a lot of time.