Hiroko is a street smart, relaxed and open-minded lady with a 'you do your thing, and l'Il do mine- live and let live' personality. Hiroko has high regard for human lives. Hiroko also appears to be rather childish at times, referring to her close friends in playful banter. Yasuhiro is one of the more cheery, laid-back people though a bit odd as well. However, he is generally not well-liked and he himself has openly admitted that he has no friends, being quite cowardly and quite selfish.