|Affiliation||Old Man (Husband)|
|Anime debut||Death Billiards (cameo)|
|Seiyū||Ikuko Tani (Japanese)
Linda Leonard (English)
She is an old, kind looking woman with wrinkled skin. She has long brown hair kept in a tight bun and wears a yellow dress with a orange and red striped scarf.
She seems to have been a kind woman. She was very patient and calm throughout the whole game. She was very friendly to Decim and Chiyuki, sharing memories of her life with them and enjoying the game with a smile. She was also very shrewd as she figured out she was dead despite not having the memory of how she died as she saw a card that had an illustration that she imagined but never drew, meaning it was impossible for it to be on a card when it didn't even exist. She has lived a long, full life and appears to be content with it, especially since she was calm and immediately accepted her death.
Before death, Sachiko was a hardworking but not very popular illustrator and admits that while there were tough times, she truly enjoyed what she did. She married young and lived alone happily with her husband her entire life, due to being incapable of having children.
She plays a game of old maid with Chiyuki and Decim and wins the game. Decim did not set up an extreme condition or threaten her to play the game. She enjoyed the game because on the cards she was playing many of the illustrations she drew appeared and as an illustrator, it made her happy to see her illustrations. She figured out she was dead by discovering a card about one of her unreleased illustrations. When Decim asked her if she would like to know how she passed, she respectfully declined. She also appeared to know the story of Chavvot, which prompted Chiyuki to remember her name and her background. Afterwards, Decim sent her to reincarnation, having respect for her for living her life to the fullest.
- "How do you express your feelings? Yes, with words. But there are other ways to express your feelings. That is probably why they made Chavvot deaf. For example, a person smiles no matter what land they are from."
- It is revealed that she is the wife of the Old Man from Death Billiards.
- Sachiko is the only human guest that wasn't put under an extreme condition by Decim before her judgement.
- She could be based on the real mangaka Osamu Tezuka: both of them died while illustrating and their drawing styles are similar.