07-Ghost lamenting over the people's suffering

According to a centuries-old myth, the God of Death, Verloren (Dutch or German for Lost or Doomed), 'killed' the daughter of the Chief of Heaven and was forced to escape to the earth. In retribution, Verloren invaded the hearts of the people, who slipped into despair. Lamenting over the people's suffering, the Chief of Heaven dispatched seven heavenly lights in order to punish Verloren. Called the "Seven Ghosts", they are said to have sealed Verloren on the earth and served forevermore as the guardians of the Empire. Mothers often tell their children that if they are naughty, the Seven Ghosts will come to take them away.

Though Verloren has been sealed away in Pandora's Box for over 1000 years, his messengers, the Kor, find and contact humans to bring them under his influence 07-Ghost
. If a contract is made, a mark appears on the person's chest. This is known as "Verloren's curse," and it indicates one's heart being eaten by darkness. One of the duties of the "07-Ghosts" is to fight against Verloren and his curse and try to stop contracts from being fulfilled. Only the Bishops can remove Verloren's curse.

The 07-Ghosts are embodied in humans with such extraordinary Zaiphon abilities that they are considered to be blessed by God. They were originally fragments of Verloren, and they were sent down to the earth by the Chief of Heaven in order to stop Verloren. Each of the 07-Ghosts has died in his previous life, and they all retain their memories of their past lives. Frau, Castor, Labrador, Fea Kreuz and Lance have been revealed to be Ghosts thus far; all of them have the mark of their Ghosts on their hands. The Ghosts' names are Zehel, Fest, Prophet, Landkarte, Reliquie (or Relikt), Eher and Vertrag, all of which have Dutch or German origins. Each of the Ghosts has a specific power:

Zehel – 斬魂 "the cutting spirit" (Frau; the Ghost who severs bonds)

Fest – 繋魂 "The Tying Spirit" (Castor; the Ghost who binds souls together)

Profe – 言魂 "The Speaking Spirit" (Labrador; the Ghost who prophesies)

Reliquie (can be also written as "Relikt") – 遺魂 "The Bequeathing Spirit" (Lance; the Ghost who sees one's past)

Vertrag – 契魂 "The Pledging Spirit" (Fea Kreuz; the Ghost who manipulates souls)

Landkarte – 消魂 "The Extinguishing Spirit" (Katsuragi; the Ghost who sent something or himself away to a certain place)

Ea – 醒魂 "The Awaking Spirit" (Kal; the Ghost who assigns numbers to every soul in the world and determines their destination after death)

Some editions may translate the Ghosts name wrong. Since all their names come from German, the names have a meaning in this language, and are not just a name Cosplay Costumes . For example, It is common to see the name "Randkalt". "Rand" means "edge", "kalt" means "cold", making the name meaningless. In the other hand, the name "Landkarte" means "map", which corresponds with Landkarte's ability. The same happens with the Ghosts Reliquie (translated Rilect, not a German word) and Eher (Ea, not a German word).

When a person is given a life from the Chief of the Heavens, they choose three dreams to complete over the course of their lifetime. When all the dreams are granted, their souls will be called back to the Chief and be reincarnated. However, when people are born they do not remember the dreams they chose, and finding out the dreams is supposedly the joy of life.

There are evil beings who want to interfere with this process; among them are Verloren's messengers, the Kor, who steal dreams and drag humans into darkness. When a human's first dream is granted by a Kor, the person's heart becomes unstable and unable to be satisfied no matter what he or she does. When the second dream is granted, the person falls into a state of starvation or addiction. When the third dream is granted, the soul has indulged in too much darkness and becomes forever unable to return to the Chief of Heaven. The Kor then takes the body; a possessed body with all three dreams fulfilled by the Kor is called a Wars (warusa means "evil" in Japanese) 30-35cm wigs
, and they serve Verloren. A dark magician who can control the Wars is called a Warsfeil.

It is the duty of the church to protect people from the Kor, because the feeling of addiction is very difficult to remove. There are cases when a Kor may grant a wish that is not one of the three dreams, but it upsets the equilibrium and the Kor may be punished for it.