Kougyoku Ren

Kougyoku Ren (練紅玉, Ren Kōgyoku) is the Kou Empire's eighth Princess. Kougyoku is the owner of the Djinn, Vinea. She is a Dungeon Capturer, capturing one Dungeon, and a King Candidate. Judal has stated, because the plans in Balbadd fell through, she has lost her standing as a princess. She has temporarily allied herself with Sindria.

Appearance
Kougyoku is a small young girl with pink eyes and long, dark pink hair, which is pinned up with her golden Metal Vessel. She usually wears a long, elaborate dress signifying her royalty. She carries herself demurely and often hides her face behind her sleeves when embarrassed.

Personality
Kougyoku is a very willful person. She tends to act childishly, but she can become serious if the situation calls for it. Even though she puts up such a willful front, she is actually a very lonely person and wants friends. She doesn't want to follow all of the Kou Empire's orders but is too scared to disobey.

She has always wanted to have friends and close companions, but within her family, she has felt ostracized because of her parentage and has not even had the courage to get to know Hakuei or Hakuryuu, the more approachable of her siblings. Instead, she occupied herself with becoming skilled at kemari by herself, playing make-believe by herself, doing a fashion show by herself, etc.

History
Kougyoku is Second Emperor's youngest child. She has a history like Alibaba: she wasn't born into royalty like her siblings, because her mother was a prostitute. She calls herself as a "lowborn".

Even in the Imperial Palace, she was put aside and felt out of place. But at that time, Judal and her brother Kouen Ren acknowledged her as a King Candidate and gave her the position of a warrior.

She captured the 45th Dungeon, Vinea, with the help of her assistant, Koubun Ka.

Balbadd Arc
She arrives in Balbadd, at the Fog Troupe base. She saves Judal, after his defeat from Ugo, along with her assistant Ka Koubun. She gets attacked by Ugo and retaliates by using her Djinn Weapon Equip and drilling a hole through him, thus, defeating him. When Aladdin gets angry at her for attacking Ugo, she gets ready to fight him, but is stopped by Sinbad.

She is next seen in Balbadd's palace confronting Alibaba about the agreement between the Kou Empire and Balbadd. After the agreement was done, she returns to the Kou Empire with Ka Koubun and other subordinates on a flying carpet.

Sindria Arc
Kougyoku was on a boat with her cousin, Hakuryuu Ren, heading towards Sindria. She is very upset at Sinbad for something he "did" to her. As soon as they arrived on Sindria she claimed that he had knocked her out and had his way with her at night. Because of these accusations, which Sinbad denied adamantly, Yamuraiha uses a special kind of magic to re-create the events of the night. Everyone learns that Kougyoku was knocked out and brought to Sinbad's room where nothing happened. She is confused about who would do such a thing when her assistant, Ka Koubun, admits to doing it to try to further his own status and get her with Sinbad. Soon after, she consoles Koubun when he cries.

When Hakuryuu goes to talk to Aladdin, Alibaba and Morgiana, Kougyoku is accompanying him. She says they should get along, despite what happened in Balbadd. Aladdin accepts but soon they start "fighting", because he still holds a grudge against her for what happened to Ugo.

Zagan Arc
When Judal goes to Sindria to have a talk with Sinbad, Kougyoku ask him what he meant when he said that the Kou Empire will destroy Sindria. Judal then tells her that she no longer needs to stay in Sindria, he asks Kougyoku to return with him and he would turn she into a general. She is undecided on which way to get until Judal ask her what's wrong and suddenly goes away.

Soon after, Kougyoku asks for an audience with Sinbad to apologize for what Judal said. Sinbad tells her it's alright and that she can remain in Sindria as long she likes.

World Exploration Arc
When Kouen returns to the Kou Empire, she worries about Sindria and goes to talk to him. Before she can talk to him, she watches as Kouen has a talk with Hakuei and Hakuryuu. She is then noticed by Kouen which she then comesout from hiding. He then informs her that Kouha has returned. It also appears that she has been hearing voices since her battle with Sinbad when Sinbad uses Zepar's power.

The next day, Kougyoku heads to where the funeral with the her siblings. She is shocked to see what has happened to the emperor. After the funeral and the next Emperor is appointed, she leaves the hall.

Abilities
According to Sinbad, Kougyoku's power is above average.

Swordplay
 * Kougyoku seems to have basic skill in swordplay.

Djinn
Kougyoku's Djinn is Vinea. Vinea is the Djinn of Sorrow and Isolation. She uses her Djinn to summon and control water. When she first summoned it, it appears as a water dragon while surrounding her with a "Water Membrane".

Household
The only member of Kougyoku's Household is Koubun Ka. He uses Vinea's water to heal with his Household Vessel.

Metal Vessel
Kougyoku's Djinn Metal Vessel is a hair pin.

Djinn Equip
"Spirits of Sorrow and Isolation, In the name of my Magoi, and my will to grant me a greater power, I order you and your members, Come Forth, Vinea!!"

- Kougyoku, when summoning the powers of Vinea She is very proficient in Djinn Equip. She is able to take the form of her Djinn completely. Her Djinn appears to be some sort of fish with gills and fins all around its body.

Vainel Ganezza (Water God’s Sea Call)
 * When using this Extreme Magic the Metal Vessel Symbol appears behind her while she recites the spell. While she is reciting a large amount of water gathers toward the symbol until enough water to flood a city is gathered. When she unleashes it, it takes the form of a giant tsunami.

"Spirit of sorrow and isolation… thou who controls the power to make kings, bring forth the great raging streams that judge the surfaced earth!!"

- Her Extreme Magic Chant

Djinn Weapon Equip
Kougyoku is also very proficient in using her Djinn Weapon Equip. She is easily able to call forth her Djinn's power. She usually fights by creating a water tornado around her weapon while spinning. This attack is very powerful, able to blow a hole straight through Ugo's chest and complete defeats him. This is something Judal, a Magi, could not even do although Ugo was greatly weakened from his fight with Judal.

Sinbad
Kougyoku appears to have fallen in love with Sinbad at first sight. She becomes very nervous and embarrassed when around him. Others have commented that she would do anything he says, a fact that he himself has not seemed to notice.

Kouen Ren
Kougyoku has admired her half-brother Kouen for some time.

Judal
Judal constantly tease Kougyoku and calls her "Old Hag", this makes her get very angry. But he was one of two people who acknowledged her as a warrior. Kougyoku tried to be his friend, but Judal refused. She affectionately calls him "Judal-chan". In Volume 6 Extra, he pats her head and says that "she has a cute side too".

Alibaba Saluja
Although the events in Balbadd, Alibaba and Kougyoku became friends after they talk about their similar past.

Aladdin
Aladdin and Kougyoku seem to dislike each other since she defeated Ugo.

Trivia

 * Her name means Red Jewel or Ruby in Japanese.
 * Kougyoku has the same age as her brother Kouha Ren.
 * Judal constantly calls her "Old Hag" when they are in the Imperial Palace.
 * Her hobby is to wear luxurious and extravagant clothing and her weakness is making friends. Her special skill is fencing.