Birthday: May 20
Class: Teruhi Higashi High School, Class 3-A
Likes: Her brother's growth
Dislikes: Throwing away things

The protagonist's only older sister and in class 3-A at Teruhi Higashi High School. She was last year's Miss Santa. She has the personality of an air-headed idol, and she naturally charms others. Because of that she's very popular at her school.