This drama was fun, interesting, a bit different but it lacked in some ways.

I will start with what I liked about this drama. The beginning isn't dragged out. The main characters are quickly introduced and the time travel “reset” begins within the first 30 minutes. While the pacing is fast, the story never feels rushed. It is good with the mystery, suspense, and kept you at the edge of your seat, guessing and wondering about what comes next. Ji Hyung Joo is easy to empathize with and brings moments of playfulness to an otherwise intense story. Lee Joon Hyuk portrayed him perfectly. I can't imagine another actor playing his role. What really intrigued/surprised me was that the female lead isn't stupid and can sacrifice herself. She played a huge role to find the killer and helped the Ml. Both of the leads are intelligent and work great together. Every action has a reason. All of the supporting cast has a background and we get to see their story. They have a role and aren't there just to be there.

What I didn't like about this drama: Their way too many plot twists. Due to the plot twists, it became hard to focus and the climax didn't feel that surprising anymore. The impact kinda disappeared and I just wanted it to end so i could figure everything out. The sci-fi element has no explanations-can't say I was surprised. The villain's reasons for doing what they did didn't cut it for me. The villains lacked motive and felt bland. Same old, same old. Both of the villains needed a better backstory, explanation, and development. The only explanation was literally: boredom. I didn't like how they introduced the romance but did something with it in the last episodes. It would've been better with no romance at all or at least developed it a bit more in the earlier episodes. I just felt that something about their romance was missing and I didn't feel satisfied with the ending. Moreover, making only one of them remember the past was a cliche move. I wondered what happened to the rest of the characters in the end, but that wasn't shown. There wasn't a lot of OST in this drama so I missed music.

Overall, it was an interesting watch and this drama is by no means bad. It has a great pace, despite being only 12 episodes. I recommend this drama to people who like suspense, thriller, plot twists, and arent that focused on explanations and convincing villains.