Woo-jin, a furniture designer who wakes up in a different body every day, falls for Yi-soo, a woman he meets through his work.

Chul-soo is one of Korea’s best intelligence agents: he can accomplish any given mission. One day, a mysterious explosion takes place in Seoul. Chul-soo flies to Thailand on a mission to rescue a person who holds clues to the incident. Meanwhile, Young-hee goes on a business trip to Thailand and gets entangled with Chul-soo’s mission. Will he accomplish his mission and save his wife at the same time?

North Korea, facing international sanctions, seeks assistance from a Hungarian NGO to build churches in Pyongyang as a way to bypass the sanctions. The NGO proposes organizing a revival meeting with international Choir organizations, leading the Ministry of 5 Securities to apprehend believers. The "Victory Orchestra," a replacement ensemble, is actually composed of underground Choir members. As they sing hymns openly for the first time, their true identity as underground believers is revealed, creating moments of laughter, tears, and emotion.