The Japanese language uses a broad array of honorific suffixes for addressing or referring to people. These honorifics are gender-neutral (can be used for males and females), though some are more used for men or women and can be attached to first names as well as surnames. Using an honorific is generally required when referring to someone, but in some cases it can be dropped or must not be used. This is a list of some common honorifics and their usage in Kiyohiko Azuma's series.