|Kanji Name||柴崎 つつじ|
|School||Higashi Fuge High|
|Class and Year||1-?|
|Club||Game Creation Club|
|Manga Appearance||Volume 5 Chapter 44|
She is Roka Shibasaki's little sister that goes to Higashi-Fuge High due to failed exams for Fujou High. She shows strong affection and over protectiveness to Roka, even to the point of coming to Fujou High just to threaten Kenji Kazama due her jealousy, because Roka often mentioned Kenji in her conversation. Roka's bentos/lunch boxes are always made by her.
- Similar to Noe Kazama she fixes her older sibling lunch.