Kang Ha-neul

Young-ho

Chun Woo-hee

So-hee

Kang So-ra

Soo-jin

Lee Seol

So-yeon

Lim Ju-hwan

Young-hwan

Lee Hang-na

Mother

Lee Yang-hee

Father

Park Se-hyun

Student

Lee Ye-hwan

Cram School Student

Kim Sung-kyun

Teacher

Ko Gun-han

Jong-guk

Nam Hyeon-woo

Student

Kim Min-seo

Student

Kang Young-suk

Book Worm

Choi Myeong-bin

Young So-hee

Won Ji-u

Young So-yeon

Go Woo-rim

Young Young-ho

Lee Tae-young

Teaching Assistants

Woo Jeong-won

Teacher