D

D is an enigmatic and high-ranking god, and she also one of the administrators who manages the System of the other world that the reincarnations end up in.

It was later reveal she was the one responsible for allowing the reincarnations from Japan to retain their memories into the other world upon their deaths due to a mysterious explosion that occurred at the beginning of the story.

Appearance
D has the appearance of a high school girl with waist-length straight black hair.

To Sariel, she appears as a girl one step short of being an adult with an expressionless face that makes one think of bottomless darkness.

Personality
"I wish you'd phrase that a bit more flatteringly. You could say that I'm malice incarnate, for example."

- D

D cares more for her own personal amusement than anything else, but she's described to speak in a voice devoid of emotions. She is a playful self-proclaimed "Ultimate evil god", and most of the time states that she does things simply for entertainment.

She appears to have a sadist personality, as she enjoys watching and toying with Kumoko.

Synopsis
D was first indirectly introduced as a silent figure who was observing and gave Kumoko a brand new skill after hearing Kumoko's short rant in labyrinth. She later intervened and properly introduced herself to Kumoko, when another administrator tried to investigate Kumoko after the death of a fire dragon.

It was later revealed D was the one responsible for the students' reincarnation into the other world; their souls would have disintegrated if she had left them alone and giving the mysterious n% I = W skill, which allows them to keep their memories. She also gave each student a custom Skill according to her perception of them and reincarnated them into species that best matched the wavelength of their souls.

She is also responsible for the creation of the System, a complex planetary scale apparatus which allows the inhabitants of the world to use skills and magic. Which she set up after Güliedistodiez requested her help, which is obliged as she felt it would be interesting.

Relationships

 * Kumoko
 * D views Kumoko with a sadist perspective, taking enjoyment and amusement in seeing her struggle for survival and beyond. While she is not considered the series's main antagonist, she has on occasions both directly and indirectly place obstacles in her path, never making it easy for Kumoko to accomplished her goals.
 * D has maintains a near non-interference policy to the other world and newly arrived reincarnations as she is considered an outsider. D can be considered fond of Kumoko, after learning about her constant struggles and near-impossible survival in the harsh dungeon. She has given Kumoko numerous minor assistance in her journey, such as granting Kumoko's request for a new skill, Wisdom; granting her the title, Champion and giving her hints about the future.


 * Güliedistodiez
 * Güliedistdiez or Gülie for short is a fellow administrator of the other world. He is considered an acquaintance and an indirect subordinate of D. Despite being the original creator of the system, she left the heavy responsibility of maintaining and troubleshooting the System to Gülie. Despite the planet technically not being under D's jurisdiction, D has left him a few restrictions, that can be seen as hampering his abilities in controlling the planet. While Gülie grateful for D's assistance for creating the system, he is also annoyed by D's constant interference to the other world's affairs.


 * Sariel
 * Another fellow administrator of the other world. It is implied Sariel doesn't have a positive outlook towards D.  Spoilers from the web novel which is not yet covered by the light novel!  It was later revealed D was the one that confined Sariel into the core of the system, making her the Divine Voice that both the reincarnations and inhabitants hear when they gain a new ability/title.


 * Feirune
 * While D is observed as emotionless and nonchalant in the outgoings of school life, it is implied D still felt annoyed by Fei's actions in the previous world and reincarnated her into a dragon. As D do not have a positive view on dragons.

Abilities
D is assumed to be one of the strongest gods in the multiverse, many gods are afraid of her and do not dare to enter her places that are under her jurisdiction. It is implied there are no dragons on Earth due to her presence.


 * Physical Strength beyond the System: As a god and the administrator of the system, it is assumed her stats would be above the System's limit.
 * Conjuring: D has displayed the greatest feat of conjuring in the series: creating and designing the highly complex System with seemingly little effort. Her conjuring is so strong that it was completely uneffected by Potimas' anti-system barrier and when using it she lets out a frightning aura that terrifies even Shiraori.
 * System Manipulation: As the creator of the system, D can freely alter it however she pleases, allowing her to, for example, make new skills.
 * Immortality: As the God of the End, it is expected she will still survive till the end of the universe.
 * Telepathy: She is able to communicate with Kumoko by reading her mind.
 * Darkness: Appears as a vast field of darkness when perceived by Gyurie.
 * Stealth: Although weaker than Meido in direct combat, she is skilled at evading detection.
 * Miscellaneous Skills: As stated by herself, D can do "anything" if she sets her mind to it, even without her conjuring.

Trivia

 * She owns a wide variety of powerful and pointless magical artifacts. Such as a cursed set of playing cards and a one time use baseball bat that is able to destroy powerful magical barriers.
 * The former was accidentally used to curse Sophia so that she can only refer to Shiraori as "master".
 * The latter was used by Shiraori to destroy the barrier that surrounded the Elf Village.
 * She has a general dislike toward dragons.
 * She is known to an avid gamer.