What is it that you actually want to happen in life if you had the choice to choose from:
1. Allow your life to unfold naturally; fall in love with the person who is entwined with you by a crimson thread of fate; and accept the outcome that fate has planned, happy or tragic.
Or,
2. Even if you are aware of your fate and the one that awaits you, muster some bravery and fight against it in order to have a happy ending and spend time with your loved one—not the one that is predestined.


Now, if I talk about this drama, what I actually enjoyed is:
1. The best female character written in kdrama history.
FL, Oh Baek Ryun knew from the get-go whom she liked, what she wanted from him,who was interested in her at the same time,how to make someone fall for you, how to handle third-party interest without playing with their emotions,how to sacrifice for your soulmate,how to fight against your destiny, and lastly, how to wait, praying for your one and only loved one.
I know it's super rare to find someone like her as your partner, but if you find one, you should thank your luck for meeting her.
2. ML, Chun Sang Hyuk. When I first started watching, it seemed like he was constantly falling for different ladies in different decades, all of which ended horribly. He was even warned against falling for any woman, but if he does, it'll end in tragedy. So I was actually worried about how the current timeline would end up. But after knowing that he had unknowingly fallen for the same soul in different decades,I had no choice but to admire his character wholeheartedly.
Although he was reluctant to openly date anyone after his first tragedy occurred, when he came to know that FL was actually the girl from back then, he let go of all other warnings, etc., and finally started to follow his heart to pursue his hidden feelings.
He also fought against his destiny, remained heartbroken for decades with a huge guilt in his heart, fought again against his destiny after learning the truth behind all of the tragedies,died as a fairy, and got reincarnated as a human to live the life he wanted with his loved one.
3. Chun Dong Chil, aka A Bad Day to Be a Dog. He practically carried most of the story as a major supporting character.
I'm not going to say much about him here; you should watch to find out more.

Now let's talk about what I actually hated:
1. Chun Dong Koo, aka the dumbest irritating fairy amongst the four. A man with a personality like his is a menace to society. His story is only here as a filler. If we can cut his subplot, I guess it'll easily be a super exciting 12-episode drama.
I just find it a shame that after spending so much time on him, the script writer wrote that horrendous ending for him, which makes no sense to me, like, WTF! Why spend so much screen time on him if you already have that shitty ending for him?
3. Seo Jae Hee, the most self-narcissistic delusional freak I've ever seen. He's the second-most pathetic SML I've seen in recent times! A man thinking of him makes my blood boil.
I never liked his character for my own specific reasons, which I shouldn't put here in words.
This feeling only cooled down almost at the end of the drama when he slowly started to let go of his obsession over FL after learning the truth from his past life, which can't completely wash away the fact that I was frustrated with him in the past episode, so kindly bear with me.
3. Chun Dong Pal, Lmao, he's a filler. That's it.
There are also other little but point-worthy things that I liked and disliked in this drama, but I can't include them in this list as it is most likely already very long.
Overall, I believe I will remember this story for a very long time, which makes it well worth my time. If I consider the re-watchability of this drama, I believe once a year is sufficient to reminisce about the leads' fascinating chemistry.