"Soo-kyung works as a reporter. She has an older brother, Sung-ho, and younger sister, Joo-mi. She thinks of her two siblings as burdens. One day, Nak appears in front of them. He is their youngest sibling."
Lee Yo-won
as Soo-kyeong
Jeong Man-sik
as Seong-ho
Esom
as Joo-mi
Jeong Joon-won
as Oh-nak
Kim Hye-eun
as Soon-im
Jeong Ae-hwa
as Neighbor
Yoon Kyung-ho
as Dal-ju
Lee Do-gyeong
as Maeng-dal
Park Yong-su
as Jong-do
Jung Hyung-suk
as Yong-cheol
Choi Moon-kyoung
as Reporter
Lee Tae-yoon
as Police
Lee Je-woo
Lighting Director
Jeong Yoon-heon
Martial Arts Choreographer
Cho E-suck
VFX Supervisor
Song Min-seok
Stunts
Ahn Sung-il
Production Sound Mixer
Ma Dae-yun
Director
Kim Jin-chul
Production Design
Yang Hee-hwa
Costume Design
Moon In-dae
Editor
Jay Song
Co-Executive Producer
Kim Sung-jin
Jeong Gye-hyeon
Jo Yeong-sang
Director of Photography
Yoon Beom-seok
Art Direction
Yoon Pil-joon
Writer
Jung Doo-hong
Fight Choreographer
Huh Soo-young
Seo Ji-hoon
Boom Operator
Song Ho-yeon
"B" Camera Operator