Known Oni Clans (to Chapter 75):
West:
** Kazama:
Chikage (grandfather) [deceased] = Okikurune [* Sen-hime's great-aunt]
Great-uncle = * Yukishima Chieko-sama [deceased]
Chinatsu (great-aunt) = Yukimura Chitōki-sama (grandfather of * Chizuru) [deceased]
Great-uncle = Amagiri (great-aunt of Kyūjyū)
Kazuhiro (father) [deceased] = Shiranui Kazue (mother) [daughter of Shiranui Tsuneo-sama and Yukishima Chiasa)
Kichirō (uncle) = Okikurune Shizuka-hime [* Sen-hime's father and mother, both deceased]
Aunt = Shiranui (uncle of Kyo)
* Chikage (Lord of the Western Clans) = (alliance not determined; formerly betrothed to * Yukimura Chizuru)
Chiharu (sister) [Chinatsu, younger twin sister died age 1]
Kichirō (brother)
Kenshin (foster brother – actually cousin – son of Amagiri Kyūju / Yukishima Chikame)
Amagiri:
Kyūju-sama (grandfather) = Yukimura (great-aunt of * Chizuru) [both deceased]
Great-uncle
Great-aunt = Kazama (great-uncle of * Chikage)
* Kiyoshi-sama (father) = Shiranui Kazumi (mother; daughter of Shiranui Tsuneo-sama and Yukishima Chiasa)
Hideo (uncle, father of Kimigiku/Chikame) = * Yukishima Chiyoko-sama (mother of Kimigiku/Chikame)
Hitoshi (third brother of Kyūju's father's generation) ~ illegitimate daughter (Yukishima Amagiri Akane [widow of Yukishima Masaru])
Kyūju [former Heir] = (alliance not determined; Chikame-sama was lover)
Hideaki [Heir] (brother; early twenties) (will be confirmed as Heir by Sen-hime)
Hinatsu (brother; late teens) (third brother of Kyūju's generation)
Omori: no known descendants (frequent green eyes – no living pureblood in five centuries)
Okita Sōji ?
Tōdō Heisuke ?
Nagumo – Tosa (Island of Shikoku) – little known – secretive
* (Yukimura) Kaoru-sama [adopted] (Note: not confirmed by Princess; not known to be Yukimura Kaoru)
? Unknown if any connection to part-Oni Shinsengumi
East:
** Yukimura:
Chitōki (grandfather) [deceased] = Kazama Chinatsu (great-aunt of * Chikage) [deceased]
Chieko (great-aunt) [deceased] = Amagiri-sama (grandfather of Kyūjyū) [deceased]
Kenshin (great-uncle) [deceased] = Okikurune-hime (grandmother of Sen-hime) [deceased]
Kazuhiko-sama (father) [deceased] = Sachiko-sama (mother, younger sister of Okikurune Shizuka-hime) [deceased]
Kōdō (uncle) = (alliance with Yukishima Kimiko (Kimigiku) refused by Kimiko)
* Chizuru-sama [Heir – Third Trial Required] = * Sakurai (Saitō) Hajime-sama
Kaoru (brother, twin) [location unknown]
Shiranui:
Tsuneo-sama (grandfather) [deceased] = Yukishima Chiasa [deceased]
Kazue = Kazama-sama [deceased], Kazumi = * Amagiri-sama; (aunts, twins)
* Toshio-sama (father) = Yukishima Chiharu (mother)
Uncle = Kazama (aunt of * Chikage)
Tsuneo (older brother) [Heir] = (alliance not determined; Kazama alliance refused)
Kyō [known to have personal affiliation with Choshu]
Kyoko, Kyomi (twin sisters; ten, very frail)
[half-brothers: Hijikata Toshizō; Sakurai (Saitō) Hajime; Yamazaki Susumu]
Sakurai:
* (Saitō) Hajime-sama = * Yukimura Chizuru-sama
North: Territory Wholly Lost
** Yukishima:
Hijikata Toshizō (may be descended from main line as well as secondary/shinobi line? - speculation, Sen-hime) [father is Shiranui Toshio-sama]
Yukishima Shinobi – junior line are vassals of Okikurune (below)
Nakashima
? (no connection with part-Oni Shinsengumi yet determined)
Yamazaki
Yamazaki Susumu (possibility based on appearance, Sen-hime's general impressions; name is coincidence only?) [father is Shiranui Toshio-sama]
Center/Kyoto:
*** Okikurune: Head of this Clan known as Princess/Prince of the Oni, Lady/Lord of Kyoto and Yase
Great-aunt [deceased] = Kazama Chikage Sr. (Chikage's grandfather) [deceased]
Sumiko-hime (grandmother) [deceased] = Yukimura Kenshin (Chizuru's great-uncle) [deceased]
Great-uncle
Shizuka-hime (mother) [deceased] = Kazama Kichirō (father) (* Chikage's Uncle) [deceased]
Sachiko (aunt) [deceased] = Yukimura Kazuhiko-sama [deceased]
Satoshi (uncle)
* Sen-hime (alliance not determined; currently involved with Harada Sanosuke)
(Harada) Sanosuke (son of Suzuka-hime, First Princess of the Oni; NB Suzuka-hime was born 1000 years before present time)
Yukishima Shinobi:
Chieko-sama (grandmother) [deceased, older twin] = Kazama (great-uncle of Kazama Chikage)
Chiasa (great-aunt) [younger twin] = Shiranui Tsuneo-sama [deceased]
Masanori (great-uncle) [younger brother of Chieko and Chiasa; whereabouts unknown]
*Chiyoko-sama (mother) [older twin] = Amagiri Hideo (uncle of Amagiri Kyūjyū) [both deceased]
Chiharu (aunt) [younger twin; near dying] = *Shiranui Toshio-sama
Masaru (uncle) (brother of Chiyoko and Chiharu) [deceased] = (Amagiri) Akane (part-Oni illegitimate daughter of Amagiri Hitoshi)
[children are part-Oni fraternal twins, Michi and Mikio, age 12]
* Kimigiku (Kimiko) [Former Heir; older twin] [exiled by mother & reinstated by * Sen-hime; Shizuka-hime may have been lover]
Chikame (Kameko) [Former Heir; younger twin] (alliance not determined; Amagiri Kyūju was lover)
Mamoru (brother; fourteen)