It’s the best c-drama about time loop in 2022! It’s about finding the root cause, the best option to save all the key people.

The story unfolds little by little in every episode. Bringing the the audience closer to the in-depth story of some key casts, allowing time to develop an attachment in a short period of time was upmost impressive about the script.
We are not only following the plot but also the background story, and speculating who will be the possible perpetrators or victims.
Premise of the story: if we are given a chance to stop a bomb, but not knowing how, what do we do? Do we keep looking for solution or do we give up after many tries?
When we are faced with a time loop, do we ask why or how?
FL represents pure heroic and altruistic nature of humankind. She wants to save them.
ML represents the imperfect part of humanity, some selfishness to only save himself or others. He was influenced by FL.
Strong theme on ‘do not judge the book by its cover’, nicely expressed in various background story of the secondary character.
Overthinking on my part: first point, if I am a scientific mind, I will say, this kind of time loop is not possible at all. It’s against the law of physic. Second point, if it’s an exploration of spiritual theme on how after one died and their soul or mind kept coming back to the last moment of their death, due to resentment or unfinished business, then it will be very sad and quite suffering to know that the whole drama is only someone’s delusion. I am glad thats not how the story ends. Third point, why only ML have the self-awareness, the awakening, why the other anime/cat loving guy did not have the same self-awareness? Is it because he is secondary character?
Fourthly, the motive - it’s a believable plot to drive a grieving parents’ crazy. However to the extend of them wanting to bring down a busload of strangers, why? If you said to revenge for their daughter, how would their behaviour serve justice to their deceased daughter? If it’s because they have given up on humanity, how will their actions create an impact. So based on their logic, wouldn’t people forgotten about it as how they have dismissed their daughter’s situation. Fifth point - the romance is totally unnecessary. I would prefer that the two main casts became closed friends and may be romance bloom only in season 2.

Anyway, it’s my 2cents worth of thoughts. It’s a very very applaudable attempt for C drama to have such good writing and good acting. It’s not perfect but definitely near to perfect for a sci-if series. Well done!