Queen of the end (Highschool DxD fanfic)

Lore of Honkai, Pseudo-Herrscher, Divine Key and many more

Ok I know this isn't a chapter but I'm clarifying some lore that I will add to this fanfic. Be warned this also means spoiler for the future of this fanfic. Without further ado, let begin the lore of Honkai, bio of Speudo-Herrscher, divine key and other stuff that I will talk about. Also, some stuff in honkai will be change for this fanfic.
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The Imaginary Tree: This place is the working place of Kiana, it is a place that contains every universe and multiverse that she created during her stays at the "dxd world" after "God" give her freedom. This place can only access by her or her daughter and it exists outside of all the universe she created. The tree contains "Apple" that are multiverse or universe, the infinite root of the tree is connected to her another dimension called "The Quantum Sea" which is home to her and all her children. The roots drink the water from "The Quantum Sea" to substance itself.

First appearance: Prologue part 1

The Quantum Sea: This place is home to all Herrscher and the birthplace of the soon new race "Honkai". It contains a vast ocean of unknown energy in this space. Its primary function is to house all Herrscher and act as an access to create powerful attack for the Speudo-Herrscher.

First appearance: Unknown

Pseudo-Herrscher: They are people that are half Herrscher. They can only access if a Herrscher puts a "Stigmata" in their body, after which their body goes into a transformation, changing their appearance to adapt to the new power of Herrscher giving by their wielded.

Once their body change, the Herrscher insert their power inside the host to wake them up. It should be knowing that it can only be used on female hosts and any male host putting it will suffer a fate worse than death.

After their transformation, they become a servant or family members depending on their master. They can also be trained to gain even more power and become full-on Herrscher. But it can only be accessed by Kiana herself.

First appearance: 2- Servant

Stigmata: Creation of Kiana herself they are symbols or marks that transform the host into a Pseudo-Herrscher. They are created during the Great War when Kiana obtain a dragon egg. After Bella was born, she decide to make her a Herrscher but fail as it almost kill Bella. To counter this, she create the stigmata and made her a half-Herrscher or it will later call Pseudo-Herrscher. Pseudo-Herrscher can access this to create powerful attack from the Quantum Sea.

First appearance: 2- Servant

Honkai: A race of powerful beasts, they are later created by Kiana to act as the soldiers for her children to use even if they don't need it. If a beast scratches the victim, they will slowly transform into one of them, no matter the species or powerful they are. They are divided by classes depending on their destructive abilities, those are judgement, emperor, templar, chariot, knight, seraph and many others.

First appearance: Unknown

Divine key: Those are the weapon create by Kiana for her children. They are essentially the weapon to make them use of their full strength. They come in different shapes and sizes and can only be wielded by their Herrscher host.

First appearance: Unknown