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She is the unnamed daughter of King Jin Won and Jang Rei.


She and her fraternal twin brother inherited their mother's hair color, while she inherited her father's eye color.


As noted by Jang Rok Ha, she usually smiles and giggles a lot unlike her twin brother who was seemingly quiet.[1]


Prior to her birth, Won and Hyun Bin made a bet regarding the gender of her child. If the child is a boy, the king shall select her as the bride for the royal wedding. On the other hand, if it is a girl, she shall grant him the land she inherited, amounting to at least one-third of Seo Seo. Won bet for the child to be a princess, while Hyun Bin chose it to be a prince.[2]


Bridal Selection Arc[]

As Hyun Bin gave birth to fraternal twins, neither she nor the king won their bet in guessing their child's gender. Nonetheless, Jin Won decides to make the royal consort as the third bridal candidate for the royal wedding, since he could not find his original choice for the selection.[3]

Persecution Arc[]

During the bridal candidacy, one of Hyun Bin's servants finds her twin brother dead in his sleep due to poisoning. The prince's death takes a heavy toll on Hyun Bin; the ministers and servants brand her as crazy, mentally unstable, and unfit to further take part in the bridal selection.[4] Moreover, because of her apparent insanity, the ministers, particularly spearheaded by Yoo Ja Gyeom, decide to take the baby princess away from her mother.

Hyun Bin overhears of such scheme from her servants and, in a frenzy, rushes out to see her baby princess, who now appears to cry in her hallucinations. The king, knowing the ulterior motive of the ministers, shuns them and asks for Hyun Bin's wish after losing to her in a game of rock-paper-scissors, similar to when they were younger. She wishes to stay with the king and her baby princess, which the king ultimately grants.[5]

Crimson Moon Rebellion[]

Rei and her daughter in a carriage

As the rebel army's revolt commences, Baek Ju and Baek Lin notify Heuk Rang that Hyun Bin and her daughter are not in their quarters, suggesting that someone else might have gotten to them first. Heuk Rang then assigns Baek Ju to locate them.[6] In the end, Rei and her daughter are seen after the successful revolt by the rebel army, in which Yi Jeok ascends to the throne. With the death of Jin Won, Rei and her baby princess are seen in a carriage with Rok Ha, possibly traveling to Seo Seo, though their fates remain ultimately unknown.[7]



  1. Twelve Nights webtoon, chapter 48
  2. Twelve Nights webtoon, chapter 20
  3. Twelve Nights webtoon, chapter 46
  4. Twelve Nights webtoon, chapter 62
  5. Twelve Nights webtoon, chapter 63
  6. Twelve Nights webtoon, chapter 81
  7. Twelve Nights part three postscript


Characters of Twelve Nights
Ga Guk
Royal Family Ahn YoungHyun BinJin HyulJin JeokJin WonUnnamed Baby PrinceUnnamed Baby PrincessYi HwiYi Sae GiYoon Yeon Lee
Ministers Hwang Se HyungKim Hak GyuSa Hwa HyeonSeo In Seon WooWi Ji HyunYi HaYoo Ja Gyeom
Bi Yeong Pal Mu Baek AhBaek JuBaek LinBaek RyungBaek SaHeuk Rang
Bi Yeong Ship Mu Baek HoBaek Yoo ShinGil Mu JinYi Ha
Deung Ha Bul Myung Baek HoCrimson MoonGil Mu JinNabiSeol HwaSeo In Seon WooWol Young HwaYi HwiYi Jeok
Yu Hyang Ru NabiWol Young HwaYi Jeok
Others ChungHwang Se RyeonHyunMa Mi SongNam Yang HeonSoriWoonYi Ha's WifeYoo Dan AhYoo Dan Ah's Mother
Seo Seo
Royal Family First PrinceFirst PrincessJang ReiJang Rok HaJang RyunSecond PrincessThree Wives of Jang RyunUnnamed Baby PrinceUnnamed Baby PrincessYeong Bi
Others Gwak Ji RyeonMeng Gyeom