Jung Yu-mi

Oki

Lee Sun-kyun

Jin-gu

Moon Sung-keun

Professor Song

Seo Young-hwa

Soo-Yang

Baek Jeong-rim

Hye-rim

Lee Chae-eun

Audience

Um Tae-goo

Student

Song Gi-hyeong

Professor Oh

Shin Sun

Student

Park Seo-yeon

Yang-soon