We conclude the first season here, with more positives than negatives. I see this as a good outlook for the second season. Clearly, it was a drama made for the global audience with touches of Korean style. Many times, I thought I was watching a series from FOX or AMC because of the script style and the pace of the drama. The creature's CGI still presents issues in terms of art and finishing, but it seems to have improved as the episodes progressed. Nothing that deserves more consistent criticism.

Now, talking about the story, I noticed something that most people didn't catch, but it's quite clear in episodes 8 or 9. I'll explain: Everyone remembers that it was Akiko who drank the water with Najin. However, in the mentioned episodes above, it shows that Najin was administered to Akiko as soon as she entered the hospital. So, who drank the Najin water from the lab? Tae-Sang is my highest probability. For me, the three characters who extended their life expectancies were Tae-Sang, Chae-Ok, and Mrs. Maeda because the trio has Najin in their bodies. Probably, their Najin is asymptomatic in their bodies, and maybe in the second season, they'll erupt, unleashing a whole hell. Possibly, one of the current favorite actors, Bae Hyun-Sung, will be Ishikawa and Akiko's son.

I conclude the review by saying that although Seon-Jun and So-Hee did very well in their roles, their torrid love story seemed exaggerated and superficial to me, not convincing me. But for me, the highlight of the drama without a shadow of a doubt was Claudia Kim, playing Mrs. Maeda. She took the drama for herself, portraying a chilly and restrained yet villainous and determined character. Moreover, she spoke Japanese with an excellent and well-executed cadence.