Why, why, why do Korean science fiction series and stories start and progress so well, but suddenly end in a disaster, so that the first thought which comes to anyone's mind is that the writer has complicated the story so much that he himself did not know how to end it !!! That is why most of them end badly and the viewer regrets the time he spent watching the drama.
This mini-series is no exception to this rule. The drama starts with a new topic and very good acting and progresses well until the end of the first season. However, in the second season, when it is expected that the reason for the creation of the purple objects and how the characters of the story overcome them will be revealed in four episodes, the story suddenly takes a 180-degree turn and, while moving away from the main axis, becomes a meaningless disaster. I do not recommend watching this series to anyone because it has a very disappointing ending and I give it a 6 out of 10.