Leng Yue: 20 years old, captain of the First Special Forces Brigade of Y City.
Xue Min: 22 years old, teacher at Y City No. 1 Experimental Middle School.
Ouyang Lan: 22 years old, deputy captain of Y City Criminal Police Brigade.
Liu Ruyan: 23 years old, owner of Gehao Bar.
Tong Lingling: 20 years old, intern at the First Hospital of City Y.