Overview

While desperately searching for his missing daughter, Hae-kwan comes across an AI satellite robot that remembers sounds from all over the world. Rejuvenated by the robot's abilities, Hae-kwan begins to track down his daughter's voice. As they continue their journey, they form an unforgettable bond.

Cast

Lee Sung-min

Hae-Gwan

Shim Eun-kyung

Sori (voice)

Lee Hanee

Ji-yeon

Chae Soo-bin

Yoo-joo

Lee Hee-jun

Jin-ho

Kim Won-hae

Goo-cheol

Ryu Jun-yeol

Underground Singer

Jeon Kuk-hwan

President Go

Kwak Si-yang

Hyeon-soo

Jeon Hye-jin

Hyun-sook

Rie Young-zin

Yoo Sung-jin

Kang Jin-ah

Jang Geun-yeong