About the age gap:
I cannot recommend this drama to anyone. The main romance was childish and gross. It was so uncomfortable to watch that I don't know how I got through it. The main female lead has such a childish character. The undertones of the drama were weird, they shouldn't have been a couple. People hate other dramas for having a weird age gap, but Goblin never gets mentioned. I think this drama is one of the worst ones because their maturity level was not at the same level. If there is going to be an age gap I think writers should consider the maturity needed to give real consent. I'm glad people are finally starting to realize the importance of age gaps and real consent though.

About the storyline:
Even besides the romance, the main storyline was confusing. There was more emphasis on aesthetics than the story. I would say watch the first two episodes then stop. It goes downhill from there. At one point in the drama, around episode 12 or 13, I found myself skipping through a lot of it. I watch dramas for the storyline much more than the cute moments or aesthetics, so if you feel the same way, I do not think you will enjoy this drama. I wish I had written this review when the episodes were first coming out. It was so weird to see everyone say they loved it.

About the good parts:
The music in this drama was fantastic, and, in my opinion, one of the only redeemable qualities about it. I love Gong Yoo, but this drama was not it. Episode 1 and 2 were exciting for sure, but I cannot recommend this drama farther than those two episodes.