The main character in the serial murder of the twelve constellations.

Bai Xue, female, lives in Aries room of Class 2 of Business Administration;

Lin Tong, male, living in Jinniu House, e-commerce;

Miaomiao, female, living in Gemini room, business administration 1 class;

Pei, male, lives in class 2 cancer room of business administration;

Lu Yao, female, lives in Leo's room in Business Administration 1 Class;

Miao Chi, female, living in a Virgo room, e-commerce;

Yu, male, living in a Libra house, e-commerce;

Xia Yan, female, living in Scorpio room, graduate student of business school;

Du Qingwen, male, living in Sagittarius room, teacher of student affairs office of business school;

Shen Hai, male, living in Capricorn room, marketing;

Qi Sixian, male, living in Aquarius room, business administration 1 class;

Mei, female, living in a Pisces room, is a graduate student of Shuangyuan College.