This is one of the weirdest but also highly clever kdrama in such a long time, a really well thought out storyline and crazy cool proof of concept, but it was done with extremely stylish cinematography and catchy soundtrack, the whole thing just looks wild and sophisticated in an unimaginable way. It elevates curiosity in a steady but surprising pace and keeps you guessing on the direction of the plot, but the end results will be absolutely mindblowing and greatly satisfying, because the vast variety of sensations it has to offer is unstoppable.