Sakie Satou is a main character in Demi-chan wa Kataritai.

She is a Mathematics teacher who also happens to be a Succubus. Similar to her students, her Demi-human origin has several repercussions in her ability to fit, and perspective of fitting into a normal life.


Sakie is an attractive young woman with black hair, purple eyes, and a large bust. She is most frequently seen wearing a red track suit and glasses; the tracksuit is to obscure her figure. When her glasses are off and her hair is down, Saki (according to Tetsu) has increased sex appeal.


Being a succubus, her body produces an aphrodisiac pheromone. Much to her dismay, this effect inadvertently makes any male in her vicinity lust over her. Unlike traditional depictions of succubi as highly confident and driven, Satou is timid and shy, taking precautions to minimize her contact with - and appeal to - men around her. She highly admires Takahashi Tetsuo for his self control despite the apparent effect of her aphrodisiac, to which most males, even her students, succumb.

Being a teacher, she constantly puts her students' well-being first and foremost. Kind, gentle, caring, and somewhat clumsy by nature, these qualities present the image of an ideal wife to most men, amplifying their attraction towards her and further increasing her self-consciousness.


Tetsuo Takahashi

Because he resists her aphrodisiac effect and treats her like a normal person, Saki develops feelings for Tetsu.

Hikari Takanashi

Kyouko Machi

Yuki Kusakabe

Saki shares a love of manga with Yuki. Yuki often brings manga for her to read.


An officer from the demi division who's looked put for her since age was 14. Ugaki has served as a father figure to Saki as her own wasn't able to handle raising her. Saki is grateful for Ugaki's support and is usually the only person she can confide her deepest thoughts to.

Yuusuke Satake



  • She lives in a house in a remote location, as having neighbors would make her uneasy due her aphrodisiac effect.
  • Saki awakes at 4:15 every morning.
  • She is home less than she wishes as she is forced to take the last and first trains to avoid large crowds.
  • Its vaguely implied Saki will lose her aphrodisiac effect or it will be greatly lessened once she has children. When Ugaki explained demi division cases involving succubi, he states only YOUNG succubi are the cause of the case.


v - e - dCharacters
Main Characters
Tetsuo Takahashi | Hikari Takanashi | Kyouko Machi | Yuki Kusakabe | Sakie Satou | Himari Takanashi
Minor Characters
Yuusuke Satake | Taeko Yachigusa | Ugaki | Kurtz | Souma | Koji Takanashi | Midori Takanashi | Principal | Vice Principal | Jun'ichi Ohta | Oota | Kimura | Imori | Matsuri