So, the story is actually so-so, a common melodrama where ml breaks up bcoz some disease and still cares for fl until he eventually died. Very common, but I never get bored cuz it is very well done by the actors and prod. team.

The acting is PERFECT. The acting struggle is very obvious, bcoz of the language barrier, and there's NO DUBBING. Lee Joon Gi's chinese is 90% perfect, with only some missed tones (I won't lie coz I am a chinese speaker). The korean spoken by the chinese cast is also perfect. The feelings are so real and their romance is sweet.

Nice music, no over-mellow music and good music production

Definitely rewatch if I'm bored.