I will give an honest review about this drama. I think the ending of this drama makes a lot of sense, because it's actually humans who are more evil than those alien balls. Their acting was really good. And the stroyline is also good, just right for the portion. The messages that the author wants to convey can be conveyed properly. For you guys who expect them to be all alive, sorry, don't suddenly judge this drama as a bad drama just because of the unpleasant ending. You have to be more subjective :)
Loved it from the first episod. Its plot, the characters, & best of all Woo Young Woo. She is such an interesting & charming character that would constantly make you smile when you see her. Can't wait to see more of her in future episod.