

“Listen to your bubbles.”
Dong-chun, an elementary school student overwhelmed with seven afterschool learning academies, stumbles upon a mysterious bottle of rice wine during a school retreat. As the rice wine ferments and emits strange sounds like Morse code, Dong-chun sets out to unravel its identity and discovers the secrets of the world and the reasons behind her current way of life.

Park Na-eun
Dong-chun

Park Hyo-ju
Hye-jin

Kim Hie-won
Young-jin

Kim Ji-hoon
Goo-po
Han Onew
Lee Na-young
Jeon Young-soo
Soong-yi (voice)

Bae Yu-ram
Lecturer

Oh Tae-kyung
MC

Lee Jae-in
Passenger

Lee Yo-seob
After-school instructor

Jeong Jong-yeol
Lee Jun-goo

Yoo Jong-yeon
Member
Lee Gi-hoon
Na-young's father

Lim Jae-min
Persian Language Judge

Kim Bong-hee
Old woman

Lee Dong-chan
Drunken

Shin Kang-kyun
Drunken
Lee Ha-yool
Child Giving a Presentation