What I liked:
* The acting performances of both main leads, they portrayed the emotions of their characters, their fears, their anguish, their hopes really well.
* The soft, washed-out colour palette. It supports the slow pacing of the story well.
* The setting is in a rural area, with normal people in normal surroundings.
* There are none of the usual BL tropes here, wich is always nice to see. This is what you can call a universal love story.
* Overall an unusual story for a BL series, although not for a "traditional" (romantic) show. Extra points for that.

What I did not like:
* I don't know why the brother and his friend could not have just stayed supporting background characters. Their relationship distracted from the main leads.
* Too many flashbacks. The pacing could have been more concise and still alllow for enough space to show the motives and emotions of all characters and have a slow pacing.
* Why do the doctors tell Nut about his friend's (their patient's) medical situation? This is not ethical behaviour and it irks me.

Overall impression:
Very nice, but expect a story that deals with a heavy experience and how both main leads deal with it. Not light-hearted, so if you are prone to crying in emotional scenes, keep your hankies ready!