The film tells the story of Gae-chun, a female diver native to Jeju Island who is reunited with her granddaughter Hye-ji after 12 years of separation. However, a story that Gae-chun does not want to believe is followed.

• Canola
• Chang
• Youn Yuh-Jung
• Kim Go-Eun
• Kim Hee-Won
• Shin Eun-Jung