Every last Thursday of the month at an all-girls high school, the students of Class 2–5 cast their votes in a popularity poll. The results classify them into Grades A, B, C, D, and F. If they fall into Grade F, they become legitimate victims of school violence.
as Seong Su-ji
as Baek Ha-rin
as Myung Ja-eun
as Im Ye-rim
as Ko Eun-byeol
as Bang Woo-yi
as Kim Da-yeon
as Seo Do-ah
as Shim Eun-jeong
as Song Jae-hyung
as Yoon Na-hee
as The President
as Teacher Choi
as Kang Seon-hee
as Oh Sung-a
as Ra Hae-jun
as Teacher An
