In a store that comes alive at night in a part of Seoul, four troubled monster guys rent a tattoo shop for spirits by a not so average grandmother and whoever walks into the underground store, will leave their mark. After running away from her strict parents, Dasom Kim is hoping to find herself as she enters this new world to live with her grandmother, the guys want a quiet life after fleeing their problems to open up the spirit tattoo parlour to hide and her grandmother wants to keep the world safe in her own unique way. But often spirits have their own agenda and Dasom will soon discover a magical tale about her own life that will change everything as she arrives at this strange parlour in Seoul.