Despite being a weak character to begin with, appearing very withdrawn and not wanting to do anything that would bring attention to herself, Youko grows in strength and maturity, becomes empathetic towards the people around her, thinking articulately about her actions (especially as queen) and continues to do so until the end of the series.
When Youko loses the scabbard during an attack by Kikis, it appears in the form of Aozaru, the blue monkey, and taunts her with her doubts while the sword presents her with visions of things she does not wish to see.
Voiced by: Seiji Sasaki (Japanese); Kirk Thornton (English) Seikyou (靖共, Seikyō) has long served as the Chosai, the top administrator, of Kei.
Keiki contracted Shitsudou and in order to save his life, Joukaku abdicated her throne and killed herself after a short reign of six years and was posthumously known as Yo-ou (予王, the Prophet).
Forced to appear before Joyei (舒栄), Joukaku's sister and pretender to the throne of Kei, Keiki remains a prisoner of the false ruler until Youko, aided by the King of En, rescues him and frees him from his enchantment.
Voiced by: Tomomichi Nishimura (Japanese); Michael McConnohie (English) Enho (遠甫) is a wise man who lives in the city of Hokui in the province of Ei, where Keiki is the provincial leader.
When Youko leaves to visit Takuhou and Meikaku, the rike is attacked by Shoukou's men; Rangyoku is killed, Keikei is injured, and Enho is abducted and taken to Gahou.
Enho is rescued when Youko sends the royal army to attack Gahou and she appoints him as her Taishi, one of her chief advisors responsible for educating her on matters of state.
Under the name Shouhaku (松伯, Shōhaku), Enho was known as a legendary higher sage who served Tatsu (達王, Tatsu-ou), a great and beloved Emperor of Kei, and was responsible for sealing Aozaru into the Suigūtō's sheath.
Kantai seeks to expose the corruption of Gahou, and he sends Shoukei to the intermediate village of Houkaku to provide touki weapons to the Shisui rebels.
Born during a time of civil war in Japan, the Kirin of En was abandoned by his parents at a very young age and had been starving to death until his Nyokai found him.
During this time, Kouya develops into a sadistic person with no regard to human life – regularly letting his demon bird devour prisoners, soldiers, as well as female servants who have offended him.
When Atsuyu is defeated, Kouya leaves En without punishment, and becomes known as Kenroushin-kun (犬狼真君, Kenrōshin-kun), a heavenly sage tasked with guarding and protecting the people who travel the Yellow Sea.
As such, the King of Kou secretly supports the false queen Joyei (舒栄), the younger sister of Joukaku who seized the throne without being chosen by Keiki, and makes various efforts to capture and kill Youko.
Voiced by: Kenichi Suzumura (Japanese); Peter Doyle (English) Rakushun (楽俊) is a Hanjyuu with the form of a twenty-two-year-old mouse who is a citizen of the Kingdom of Kou.
Voiced by: Houko Kuwashima (Japanese); Kate Higgins (English) Shoukei (祥瓊, Shōkei) was the sheltered princess of Hou, until her father Chuutatsu's government was overthrown due to his overly strict enforcement of the law.
Revoked of her status as a member of Hou's royal family, Shoukei is forced to live anonymously as a peasant without any luxuries and is displeased with the drastic changes in her life.
Initially unaware that her rescuer is Youko, Shoukei decides to find the Queen of Kei in order to warn her about the coming rebellion and, like Suzu, joins rebels revolting against Shoukou, the corrupt governor of Wa.
Gekkei led his uprising because he had become aware it was too late to restore him to the rightful path and there was no longer anyone willing to stop the king, who had become fanatic in trying to ensure his people were righteous.
After executing the king, the kirin, and the queen, Gekkei spares Shoukei's life, in spite of the deep resentment and loathing the populace holds over her for not stopping her father.
Voiced by: Rumi Ochiai (Japanese); Jessica Stenuis (English) Kaka (佳花) was the previous Royal Consort of Hou as the wife of Chuutatsu, and mother of Shoukei.
She eventually leaves for Kei in order to search for Youko, believing that she can rescue Suzu from difficult life, and befriends a boy named Seishuu, who has failing eyesight.
Known for her compassion and great character, she is known by the regnal name of Kouko (黄姑, "the golden mother-in-law"), in recognition of her status as the previous king's aunt and adopted mother.
Her informal given name is Shinshi (槙思) Prior to becoming the ruler of Sai, Kouko had served as the Taifu, one of the three advisors of Shishou, her nephew and immediate predecessor as king.
Eventually Sanshi and Gouran start to go wild and begin killing everyone who gets close to Taiki, mistaking them for enemies: this causes his human family, which already distrusted him, to abhor him and pretty much wish for Takazato's death, believing him to be a living curse.
The final breakdown comes when Sanshi and Gouran murder the abusive Takazatos when Taiki is away, showing that they have completely lost their nature as shirei and have become wild youma, as shown in Demon Child.
Afterward, Taiki (now without his kirin powers or shirei due to the loss of his horn) reunites with Risai and they leave for Tai in an attempt to save the kingdom.
Voiced by: Naomi Shindou (Japanese); Michelle Ruff (English) Risai (李斎) is the general of Tai's Jou Province and well-known, though she is not as renowned as Gyousou.
Asano eventually becomes part of a group of Shusei and works for them as they traveled through the kingdoms, but being in a completely alien country and lacking the ability to speak or understand the language, the strain has taken a toll on his sanity.
She asks him to work for her and the resistance, and he accepts as his last chance of redemption, but while performing a mission for them, he is fatally stabbed by an enemy and loses consciousness in Shoukei's arms before he dies of his injuries.