Can anyone clarify all the different honorifics? For example Hijiri's ex-fiance is the only one who calls her by her name without any chan and Akira's mother is the only one who calls him Akira. Otherwise even his friends call him Kouriwa-kun. And some ppl call Hijri, Hijiri-chan as well. So how close do people have to call each other by only their names? Basically I just want them to say each other's first names. lollls