I checked out the first two episodes when the series premiered. While it was decent, I wasn't particularly eager to continue watching—especially with Part 2 releasing the following year. Now that I've finally finished Part 1, I can appreciate its intriguing elements. This fictional sci-fi horror drama draws inspiration from eerie events tied to a historical military unit known for its wartime experiments. Set in Korea during the Japanese occupation, the story unfolds in a fictional hospital where questionable experiments give rise to a terrifying monster.

The cast shines, especially Claudia Kim as the villainous Lady Maeda—she's truly captivating! However, many characters could benefit from more development; their backstories are revealed gradually in the latter half, making it challenging to connect with them initially. Additionally, some of the dialogue feels a bit shallow, detracting from the overall experience. To fully grasp the character growth and plot twists, it's essential to watch Parts 1 and 2 back-to-back.

With heavy themes and the grim realities of war crimes, Part 1 isn't likely to make my rewatch list.