|Affiliation||Celestial Warriors of Suzaku, Celestial Warriors of Genbu|
|Occupation||Emperor of the Heavens|
|Japanese||Hisako Kyouda (Series)|
- "I see. I shall have to test this group."
Taiitsukun (known as Tai-Yi-Jun in the manga), is a powerful sage who has a strong influence over the Universe of the Four Gods. Although she goes by Taiitsukun, her true identity is the Jade Emperor, an immortal and spiritual figure in Daoist mythology who uses their powers to ease the suffering of mortals. She appears in Fushigi Yuugi: Genbu Kaiden, Fushigi Yuugi: The Mysterious Play, and the OVAs.
Taiitsukun is able to change her appearance at will. When she first appears in Genbu Kaiden, she takes the form of a young boy. In Fushigi Yuugi, she is perceived as a small, older woman with white hair and a wrinkled face. Upon first introducing herself, she frightens the Celestial Warriors of Suzaku, with the exception of Chichiri, who became accustomed to her appearance after undergoing spiritual training with her. This form gave rise to the nickname, "Sunukake-Baba," which means "sand-witch."
At the end of the original series, her true form, the Jade Emperor, is revealed. She appears after the summoning of Suzaku as a beautiful, orange-haired woman with elegant robes and a court of spiritual servants.
She resides in Mt. Taikyoku with the Nyan-Nyans, who are very beautiful. According to her, people with evil hearts would see only rock cliffs, nothing more.
- "Priestess of Genbu... you have arrived."
- —Taiitsukun to Takiko
Taiitsukun appears as a mysterious bald boy wearing an apron. She only reveals her name after she gives "his" dragon" to Takiko as a gift. She is the emperor under heaven. Those familiar with the original series would recognize him as an old woman. Taiitsukun first met Takiko when she arrives at the cold mountain and spots Rimudo. She named her thus the Priestess of Genbu. Although her interactions aren't as direct as they were with Miaka and her group, she warns Takiko of approaching danger and gives her her dragon Touda for all her hard work. Also, Taiitsukun reveals to Uruki that when Takiko summons Genbu and receive her wishes, she will be devoured and sacrificed to the god.
Fushigi Yuugi: The Mysterious Play
She was first referred by Hotohori, the time when Miaka caught a fever. Miaka was still dreaming about her brother and her own world, so Hotohori says that Miaka will go back to her own world. "But only it will be true if the great mage Taiitsukun transports her."
Then when the three warriors were camping with Miaka, they find Miaka missing, really Taiitsukun trapped Miaka into a mirror with food, and Miaka is lured, then Taiitsukun wonders why she still likes the food although she's in a life-or-death situation. This was done by her to test the group.
When Miaka is able to break through the mirror, although injured, Taiitsukun leads them to Mt. Taikyoku on a magic carpet. She says that those with evil hearts would only see rocky cliffs. Hotohori turns away, saying that he does not like looking at ugly things. Taiitsukun then hammers him with a giant hammer. After Miaka is healed thanks to the contribution of blood Tamahome and Hotohori gave her, Taiitsukun tells her to concentrate. But Miaka fails, and Taiitsukun scolds her because if she does not concentrate, she will be trapped on the boundary between worlds. Yui then tells her to concentrate on her.
When she transports Miaka back into her world, she is not seen for a very long time until the fake Suzaku Ceremony, the scroll was still burning so they focused all their life force, and instead of Suzaku, she appeared in the fire. All except Chichiri were very frightened and confused. She then says that they failed, because Amiboshi escaped, and she blames Miaka. Tamahome then steps up and says that she should not to be that hard on Miaka. Taiitsukun was very angry at Tamahome's comment, although Miaka declares that she hates herself. Taiitsukun then accepts Miaka's declaration and says that she just began to mature.Taiitsukun then tells them about another way to summon Suzaku, about the Shinzaho and because Amiboshi is dead, Yui and the Seiryuu warriors will find it as well. Taiitsukun gives them some gifts, except for Tamahome , saying that he did not need an old hag to give him gifts. But it is revealed on the battle between him and Suboshi , and his powers were boosted.
Then she appears next when Ashitare took the obtained Shinzaho from Miaka, saying that "if she couples with Nakago," she will suceed when Nakago is abused at this rate. Then her old and wrinkled face suddenly transformed into a jade empress with orange hair in the last episode when Suzaku was summoned. However, in the following episodes of the OVA where she appears, her face was back to old and wrinkled.
She appears in the 2nd OVA when she explains about the jewels that contains Taka/Tamahome 's memories.
In the last episode of the 2nd OVA, the dead warriors are reborn and she explains to Miaka and Taka that they can live wherever they want. She then asks if anyone has questions, and anyone who wants to ask about her appearance will be rejected.
She appears again when she explains to Tasuki, Chichiri, and to Taka (Tamahome's reincarnation) that they should find the remaining reborn warriors and the Shinzaho. She gives them a ball that will help them in their quest.
When the three warriors and the reincarnation of Nuriko finds Shu Eian, the reincarnation of the emperor Hotohori, Taiitsukun appears and brings the reincarnations of Mitsukake and Chiriko. She tells them that they must all go to the capital quickly because the Shinzaho is in danger.
She appears meaninglessly on the last episode, saying that they all did a very good job. After that, she vanishes.
- "Who are you calling sand witch?!"
- "You don't need an old hag giving you gifts, right?"
- "Any questions about my appearance will be rejected."