Setsuko Sasaki

Sasaki is a second-year student at Sugisawa Third High School and a member of school's Occult Research Club alongside her friends [Yuuji Itadori](https://anilist.co/character/127212/Yuuji-Itadori) and [Takeshi Iguchi](https://anilist.co/character/200767/Takeshi-Iguchi).