Eun Gyeol is the only one who is hearing among his deaf family, he loves his family and has a passion & talent for music. One day he goes back in time to 1995 where he met his young father who is still hearing, so he wants to change the future. Will Eun Gyeol succeed and can he get back to the present?

This drama was love at my first-sight until ep 6. The story within those episodes give me a lot of typical sweet kdrama moments that first got me like first-watching kdramas. I appreciate the heartwarming family, as they have been underrepresented in recent dramas. Each character is given a strong personality that make me root for them. All-round very very good acting! Their expressions seep off of the screen and pulled my heartstring instantly. The young cast, they are so cute and perfect together. Also the emotional moments are so heartbreaking, I could cry any moment thinking about them. Everyone so good in doing sign languages, but my favorite is Bong Jae Hyun who plays the brother, the way he’s doing sign language is so cute especially when he’s angry XD

The film-editing is on-point: the band, the musical world in Eun Gyeol perspective and such... all fit perfectly with the context. The music is nostalgic and few gives 80's vibes. Storyline is easy to follow but the plot is not-so-simple; different threads and relationships are going on without them being confusing. Honestly, I didn’t know this is a timeslip show until I reached ep 2. What can be either a con or a pro, depending on your own taste, is the drama constantly being very plot-driven, that a lot of things are happening around characters and they don't have enough chances to drive the plot through their decisions.

…this part has spoilers:
So after ep 6, it fell a little flat. Even though there's no slump, the concept of wanting to change the future feels out-of-the-blue, they don’t say anything convincing that take me to be on board with this mission. How much time pass in present day while being in the past is not clear as well. They spent many episodes on lovey-dovey moments, which was sweet, but not as impactful. However, I really like how they develop Chung Ah’s character, that part makes me want to learn sign language now...

Also, the foreshadowing incident that is discussed throughout the drama is teased to our faces with a typical high-school trope, which is serviceable, but doesn’t sit very well with me personally, especially due to what really happened to close this incident arc has nothing to do with this. Another thing I was hoping to see is the conflict resolution between Eun Gyeol and present-day father in the early episodes about schooling vs music… I was curious how they handled this and we get practically nothing, so I'm a bit salty on that. The ending is good but also not explainable, it sooths our souls with happy moments but it could have been a lot more interesting had it be a bit more consistent with the premise.