If this drama is a poem, here's how I would love to write it:
The sun is about to set. You’ve been holding on for too long.
It’s the right time to end it all, you think.
You’ll be gone as soon as the sunset, you believe.
But as you close your eyes to surrender your pain and yourself to nothingness, he's there sitting next to you.
When you think you about to fall to the deep of the blue sea, he places your head to his shoulder.
That’s how you realize, the moon will keep you safe when it gets dark.
You could have some rest, forget about the world a little, but when you’re ready you could begin again.
The pain is there, but he and the night had helped you to heal, to become stronger, to walk with confidence since that encounter.

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(Pardon my English skill, at least that's how I would describe this drama)

This drama shares the same feeling with painting or poetry. The narration doesn’t explain but visualizes the situation. It won’t be hard for you to put yourself in the main characters’ shoes because it’s all written in all the details you find in the drama: the setting, color grading, OST and even the words that have been carefully chosen for each scene.

I used to avoid melodrama. I haven't’ watched any melodrama before beside Something In The Rain and Be Melodramatic but I really love watching this one. This drama is so beautiful. Even though at some point I feel depressed, mostly it’s a beautiful thing that makes me cry throughout this drama. The main character of this drama makes me realize things I might have taken for granted and teach me how to be grateful. I feel like growing together with the female lead. That’s how strong the male lead character is. He is not that common "manly" type of man yet he makes you feel like being cheered up and protected. Overall, the mood of this drama is that time between sunset and sunrise spent with a hot cup of tea. I would love to rewatch again.

I know this review is so subjective. I’m just trying to be honest with my feeling because this drama feels so personal to me. You should definitely give it a shot, especially when you feel tired and discouraged.