The first 4 episodes were fast paced featuring fantastic action and moments of dark humor. The show carries a powerful message and the screenplay is engaging. Overall the first part was quite impressive.

My main concern is the 12 deaths meaning the main character is reincarnated 12 times. Unfortunately, many of these reincarnations don't get enough screen time, making it hard to connect with those characters. Only Lee Dohyun, Lee Jaewook and Kim Kanghoon's characters stand out as they receive appropriate screen space and their stories unfold at a well paced rhythm allowing for a more profound connection. Considering the 12 deaths allocating a full 45-55 minute episode to each reincarnation could have provided a more convincing portrayal of their stories.

Aside from this, the production quality and acting were exceptional. I especially enjoyed Seo In guk, Park Sodam, Lee Dohyun, Lee Jaewook, Yoo Insoo and Kim Kanghoon's performances.
The CGIs were acceptable though there was room for improvement.

Btw Go Younjung and Lee Dohyun have natural chemistry and i hope to see them together in the future.