A perfect mix of supernatural, fantasy, comedy, period drama, romance, love triangles, and mystery. For me, this is entertainment at its best. It is almost akin to Hotel del Luna where the sub-plots break up the main story arc keeping the viewers entertained and wanting more. The onscreen chemistry between Cha Woong, Seul Hae, Choi Gum and the three ghosts make the comedy hilarious. It's a perfect balance of all the genres mentioned above. It's just the right amount of everything blended together to produce a great escape from reality.