Overall, its a really wonderful story between two individuals from two different worlds. We see a lot of the early struggles of their relationship, not only from their language barrier, but also how these two people are as two individuals who grew up in different settings as is with most relationships in the world. Its definitely a very good drama for anyone that loves melodramatic and slower paced dramas.

The story itself has great pacing throughout the entire show. You see the two characters take their time to fall in love, to open up to each other, while still struggling in their own daily lives. So the build up to them finally opening up and letting each other in and fitting each other into their daily lives is beautifully portrayed and a lot of emotion is carried leading to this point. Its a perfect portrayal of how having a partner, even if they aren't meant to be in your life forever, can still have such a huge impact on your life. Relationships should be cherished no matter the outcome.
The second part of their relationship is also fairly well done - we see the end of the honeymoon phase and we see the issues with the language barriers that while you put up with loving someone, they can ware you out over time. We don't see enough of the final breakdown of the relationship imo, a little more really would have hit the nail on the head in terms of feeling the emotional pain of the characters but still the message was received.
My only hitch with the story is essentially the ending - it was a classic ending that most dramas do with the idea of "time" healing wounds and such however, there were not enough scenes to show the characters CHANGING or GROWING. Their main issues were not resolved or at least we didn't see the realization they discovered of WHY their relationship failed and WHAT needed to change. Had we seen this, it would have been a perfect full circle.

Now ofc, I can say that WHY and WHAT can differ for different people in different situations so the writers may have left this a little more to our imagination which is why I'm okay with the story ending as it did - but I still think it could have been portrayed in a way that felt more satisfying - a way to see them struggle and think things through and really realize why they needed the time apart and how they could come back and be happy.

Everything else in this drama. 10/10. The music was very well done - beautiful music and played at the right times. The silent scenes were VERY effective. I felt like when something happened and it left a big impact on me - the music cut. Just like the meaning of the show, sounds aren't everything. Sometimes the most important things in life are those that we can only see and feel, but not hear. So for the few scenes where this happens in the show, it will make your heart skip a beat and you will feel the pressure of the scenes, without any sounds.

Overall a wonderful drama for a one time watch :) I personally don't think its rewatchable for me, maybe once a year or longer but definitely it must be seen!