Chiyuki

Chiyuki is an amnesiac woman taken in by Nona to Quindecim and hires her as Decim's assistant.

Appearance
She is a young woman with violet eyes. She has shoulder-length black hair with a streak of white in her bangs. Her slender and semi petite figure is accentuated with a black crop top, a mini skirt held by a white belt, and ankle strap heels. She accessorizes herself with a necklace and a white bracelet.

Personality
She appears to be innocent but doubtful to everything when she first woke up. However after she got used living in Quindecim, she appears as a strong-minded individual who always says what is on her mind whenever necessary. She does not hesitate to oppose Decim if she feels there is something wrong in what he says. Also, because she retains her humanity even when all her memories are lost, she can give valuable insights to Decim whenever he is judging.

History
She was originally one of Decim's customers. However, unlike other humans who has no memories when they arrive at Quindecim, she has hers intact and knew the fact that she was dead. For this reason, Decim could not provoke her into playing a Death Game and with Nona's permission, he had her memories erased and extended her judgement period. After that, she was allowed to stay in Quindecim and assist Decim in arbitrating. While msot of her memories have yet to return, the story of Chavvot about a boy named Jimmy who falls in love with a deaf girl named Chavvo and desperately wishes to express his feelings to her. She has been shown reading it frequently with her mother when she was young and has stated that Chavvo's smile is her favorite part.

Death Parade
Because she was aware she died, Decim couldn't judge her so her memories were erased and she was assigned as Decim's assistant as part of her judgement. She helps teach Decim human emotions and helps him in passing judgement and reading people's feelings, though she disapproves of bringing the darkness out in people's hearts, as she feels that they are creating them instead. Eventually, she begun to remember who she was with help from reading the book Chavoot, an old favorite of hers as a child and as she begins to remember her body is beginning to crumble, because humans are not allowed to stay for too long and her judgement is coming soon.

Relationships
Decim: The two have a close relationship. She helps teach Decim about humans and understanding human emotions and actions.

Nona: She is Decim's boss and by extension Chiyuki's. She assigned her to Decim as an assistant and while the two have not interacted since episode 2, Nona believes she has a good understanding of humanity but has a long way to go.

Mother: Her mother frequently shows up in her memories and the two seemed to have a strong bond.

Trivia

 * It seems the picture book Chavvot and roller skates have a big part in Chiyuki's memories though as to how has yet to be revealed.
 * She appears to be able to cook, as seen in episode 7.
 * She has multiple spares of the outfit she wears when assisting Decim when judging.