The Scent of Sandalwood...
In Oniisama E..., as part of "The Magnificent Three", Kaoru Orihara is given an alias. Students who attend Seiran know and often address her as "Kaoru-no-kimi". The use of "no-kimi" is a title useful to a bearer of armor for a knight; you add it to the person's given name.
Armigers of any stripe - bearers of naked Awards of Arms up to peers - could simply be addressed as "kimi" (if male) or "hime" (if female). The use of the title was common around a century ago as a term of respect. Another form of "-no-kimi" is to add "-gimi" to the person's given name. It literally means Lord or Lady.
Japanese Honorifics:
In Japanese and Chinese, the family name is written first and the given name is written second. Japanese people do not usually have middle names. Japanese names are usually used with a title. Titles are suffixes added to the name. Surnames are always used except when talking to friends or family. In Japan Kaoru would be "Orihara Kaoru" and if she were a real person, I would likely be calling her "Orihara-san".
Common suffixes:
☥ -chan (Used to express intimacy or as a diminutive to children or pets)
☥ -hime (Princess)
☥ -ko (Suffix for a woman's given name)
☥ -kun (Mr.; Ms. - Used when addressing younger people or colleagues)
☥ -sama (Mr.; Mrs.; Ms. - Formal)
☥ -san (Mr.; Mrs.; Ms.)
☥ -senpai (Senior; elder; predecessor)
☥ -sensei (Teacher; master; doctor; lawyers; politicians)
☥ -tachi (Plural indicator)
There are also words used to address people you have relation to or look up to.
☥ ane-ki (Older sister or older sister-like figure)
☥ ani-ki (Older brother or older brother-like figure - tough personality)
☥ ani-ue (Older brother or older brother-like figure - more refined term)
☥ oba (Middle-aged woman; aunt)
☥ obaa (Grandmother)
☥ oji (Middle-aged man; uncle)
☥ ojii (Grandfather)
☥ ojoo (Young girl; some else's daughter)
☥ okaa (Mother)
☥ onee (Older sister)
☥ onii (Older brother)
☥ otoo (Father)
☥ ouji-sama (Prince)
☥ oujo-sama (Princess)
Sources:
Sengokudaimyo.Com - Modes of Address: Kimi