D

D is a high ranking god who reincarnated the her classmates and teacher into the other world upon their death at the beginning of the story. She was also in the classroom at the time but did not perish.

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

Personality
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 enjoy watching and toying with Kumoko.

Plot
D is the one responsible for the students reincarnation into the other world. She also custom tailored the students' birth situations and abilities according to her perception of them.

Abilities

 * Created the System with advanced magecraft.
 * Appears as a vast field of darkness when perceived by Gyurie.
 * Although weaker than Meido in direct combat, she is skilled at evading detection.
 * Owns a wide variety of powerful and pointless magical artefacts