Casting - definitely the best choice. Kim Soo Hyun did a superb acting, those emotions coming through his eyes. I loved Son Ye Jin's voice and wardrobe! Oh Jung Se did so well portraying as an autistic adult.

Storyline - something new, addictive for me, the twists and turns are unexpected! I did cry on some episodes that are really heartbreaking.

Music - loved the OST! I saved it on my spotify playlists.

If you haven't seen this drama, I highly recommend it! Worth watching.

Light cute and romantic

I love Daddi Tang here, he's so handsome better than PYHOMS. Wish he could have more series like this.
Lu Jia and Xu Jia Xu have good chemistry. Good acting. I really liked their sweet moments. They made my heart flutter and I can see myself smiling on some scenes. The supporting actors did well too.
If you're looking for light romantic series with light conflicts, you can consider watching this.
The sound tracks are awesome!
If you're feeling down and want to watch a series, I recommend this one.