
"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.
Kim Dong-chun

Park Hye-jin

Park Young-jin

Kim Goo-po

Soong-yi (voice)
Lee Na-young
Lecturer

MC

Passenger

After-school instructor

Lee Jun-goo

Member

Persian Language Judge

Old woman

Drunken

Drunken

Na-young's father
Child Giving a Presentation