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.

• Ji Chang-wook
• Won Jin-ah
• Yoon Se-a
• Im Won-hee
• Kim Won-hae
• Kil Hae-yeon
• Shim Hyung-tak
• Seo Jeong-yeon