
Ma Dong-chan and Go Mi-ran are both frozen during an experiment. They wake up 20 years later instead of 24 hours later and must keep their body temperature above 30°C in order to survive.

as Ma Dong-chan

as Go Mi-ran

as Na Ha-yeong

as Son Hyun-ki

as Ma Dong-sik

as Mi-ran's mother

as Hwang Byeong-sim

as Oh Young-sun

as Ma Dong-joo

as Hwang Ji-hoon

as Tarry

as Go Nam-Tae

as Park Yoo-Ja