Casts
Ryu Deok-hwan
as Nam-woo (voice)
Gong Hyung-jin
as Jun-ho (voice)
Ahn Sung-ki
as Kyung-min (voice)
Bae Jong-ok
as Nam-woo's Mother (voice)
Na Moon-hee
as Nam-woo's Grandmother (voice)
Jang Hang-seon
as Jun-ho's Father (voice)
Lee Byung-hun
as Adult Nam-woo (voice)
Lee Seok-jun
as Office Colleague 1 (voice)
Nalie Lee
as Sook-i (voice)
