Leraje

Leraje (レラジェ, Reraje) is Kouha Ren's Djinn. Leraje was in the 14st Dungeon, Leraje.

Personality
She seems somewhat vain and doesn't really care for much things. But she chose Kouha stating that she wouldn't fall for a cheater (Kouen) since he already had three Djins. And also, because he gave hope to outcasts like Reirei and her sisters.

She seems to have a weakness for attractive men, as Kouen.

History
Leraje used to live in Alma Toran. Leraje, along with the rest of the Djinn, were created by King Solomon from Rukh.

War Arc
Leraje appears as a flashback from Kouha's memories. Leraje's still in her Dungeon, talking with Kouha. She tells him that if she was a normal Djinn she would choose Kouen, but since Kouen already controls three Djinn is a cheater. She adds she doesn't want to see a world ruled by a single and absolute king but a king and his strong retainers who wouldn't even lose to him and work together in order to build the world. When Kouha says that in that case he'll be part of Kouen's household Leraje contradicts him, saying he isn't fit to be the vessel for a household. She says she understand what kind of person Kouha is by looking at the eyes of his men. She thinks maybe Kouha won't end up being the king of this world because almost anyone who lives bathed in the sun probably won't choose a man like Kouha as King.

Dungeon Capturer
Leraje's Dungeon Capturer is Kouha Ren.

Metal Vessel
Leraje's Metal Vessel is Kouha's sword, Nyoi Rentou.

Trivia

 * Her name "Leraje" is probably taken from the book The Lesser Key of Solomon. In the first section of this book, entitled Ars Goetia, several demons are described, Leraje being the fourteenth. As a matter of fact, the dungeon where Leraje resided was the 14th as well.