A story of young people who make their start in the Dongdaemun market and try to succeed as world-class designers.

This brand new mystery variety show that has only one rule: "Survive, no matter what". For each mission, cast members will enter an unknown, virtual reality space through a secret door. No matter what reality they face through the door, they must endure and survive.

Based on the longest-running web-based comic series "Ma Eum Ui Sori" in Korea, "Sound of your heart" is a story about Cho Seok, an aspiring comic writer, and his strange family.

Park Jung-Woo is a prosecutor at Seoul Central District Prosecutors' Office. One day, he wakes up and finds himself in locked up at the police station. He has temporary amnesia. Park Jung-Woo is falsely accused and is sentenced to death. He must struggle to prove his innocence.