Kaoru
Gender: Male
Relations: Son of Onna San no Miya and Kashiwagi
Other Titles: the little boy, the Consultant Captain, the Minamoto Counselor, the Minamoto Adviser, Counselor, the Commander, Minamoto Middle Captain
Appears in Chapters:  36, 37, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52 ,53, 54
Kashiwagi
Gender: Male
Relations: To no Chujo's eldest son
Other Titles:  The Captain, the Right Captain, the Secretary Captain, the Intendant of the Right Gate Watch, the Counselor, Acting Grand Counselor
Appears in Chapters: 24, 25, 26, 27, 29, 30, 31, 32, 33, 34, 35, 36, 37
Kinjo
​Gender: Male
Relations:  Son of Suzaku and the Shokyoden Consort
Other Titles:  The Shokyoden Prince, His Highness, the Heir Apparent, His Majesty, the Emperor
Appears in Chapters:  14, 32, 34, 35, 36, 42, 44, 45, 49
Ki no Kami I
​Gender: Male
Relations: Utsusemi's stepson
Other Titles: The Governor of Kii, the Governor of Kawachi
Appears in Chapters: 16
Ki no Kami II
​Gender: Male
Relations: Grandson of Yokawa no Sozu's mother
Other Titles: The Governor of Kii
Appears in Chapters: 53
Kiritsubo no Koi
​Gender: Female
Relations: Genji's mother
Other Titles: The Kiritsubo Intimate, the Haven
Appears in Chapters: 1
Kiritsubo no Mikado
​Gender: Male
Relations: Genji's father
Other Titles: the Kiritsubo Emperor, His Majesty, His Eminence the Retired Emperor, His Late Eminence
Appears in Chapters: 1, 2, 7, 8, 9, 10, 12, 13, 14
Kobai
​Gender: Male
Relations: To no Chujo's second son
Other Titles: the Controller Lieutenant, the Inspector Grand Counselor, the Grand Counselor, the Minister of the Right
Appears in Chapters: 10, 14, 23, 26, 27, 29, 32, 33, 43, 44, 49
Kogimi I
​Gender: Male
Relations: Utsusemi's younger brother
Other Titles: the Second of the Right Gate Watch
Appears in Chapters: 2, 3, 16
Kogimi II
​Gender: Male
Relations: Ukifune's younger half brother
Other Titles: N/A
Appears in Chapters: 54
Kokiden no Nyogo I
​Gender: Female
Relations: Udaijin's daughter, Suzaku's mother
Other Titles: The Kokiden Consort, the Empress Mother, Her Majesty
Appears in Chapters: 1, 7, 8, 9, 10, 13, 14, 21
Kokiden no Nyogo II
​Gender: Female
Relations: To no Chujo's daughter, Reizei's consort
Other Titles: The Kokiden Consort
Appears in Chapters: 14, 17, 21, 26, 29, 44
Koremitsu
​Gender: Male
Relations: Genji's foster brother and confidant
Other Titles: the Commissioner of Civil Affairs and the Governor of Tsu, the Left City Commissioner
Appears in Chapters: 4, 5, 8, 9, 11, 12, 14, 15, 18, 21
Kumoi no Kari
​Gender: Female
Relations: To no Chujo's daughter, Yugiri's wife, Kashiwagi's sister
Other Titles: the young lady, the Commander's wife
Appears in Chapters: 21, 26, 28, 32, 33, 37, 39, 44
Kurodo no Shosho
​Gender: Male
Relations: Son of Yugiri and Kumoi no Kari
Other Titles: The Chamberlain Lieutenant, the Third Rank Captain, the Consultant
Appears in Chapters: 44