this is my frank opinion only, others may disagree, but I really disliked this drama. Had my hopes high with Son ye jin in the lead role, and she didn't disappoint, but her character wasn't well written at all. She had no spine in the beginning, then falls in love, learns to stand up for herself, only to do everything opposite in the end. what was the whole point? All the actors did a good job with their parts. the sub -plot in the office was a distraction to the main story more than than anything else. I mean the basic premise of the drama was an older woman falling for a young guy ; that too her friend's younger sibling. But it barely had any impact on story. Everyone (almost) was just fine after initial shock. There was hardly any discussion on the social stigma /taboo related with this. As in all the reviews , first few episodes were enjoyable, but then lost traction midway through the series. The female lead does questionable things devoid of any logic. The male lead also decides suddenly he wants to move out of the country , without discussing with her. The mother was against their relationship, not because of their age gap/ what society would think of that , but instead because of parentage of the guy . Makes no sense why the whole plot focussed so much on their age gap at all. This could have happened with any-age couple. Seems like they wanted to fill out the 16 episodes with some content.

Seriously...towards last few episodes, all the characters did was stare/walk.. there were long cuts of the characters doing absolutely nothing with some bgm (dont get me started on that..) ..you could fast forward the episodes and there would hardly be 20-30 mins of actual development in story. The male lead spends half his dialogues telling the female, how beautiful she is.
Actually nothing much happens story wise in the drama at all. You could tell the story in 7-8 episodes .. there were so many filler non-relevant scenes.

The Background Score....uff...... same bloody 2-3 songs repeated every 5 minutes. after the first few times, it got irritating. Whatever the context the same song would play. and the lyrics did not suite the show at all. + these were all in English. But man, so many times the same shitty song kept playing on and on..... it was the worst part of the show.

Wont recommend this drama to anyone. I am repenting having watched it.