This drama is based on webcomic “Ssanggabpocha” by Bae Hye Soo which was published from 2016-June-1 via webtoon.daum.net. Mystic Pop-up Bar revolves around a mysterious outdoor bar that can travel around three different worlds. This Bar opens only at night on the rooftop of a building. Wol Joo (Hwang Jung Eum) runs the mysterious food cart. Customers who visit the Bar consist of normal people and the dead. While drinking alcohol and eating dishes with Wol Joo, the customers talk about themselves and try to heal their internal wounds.