This is a very well-rounded show where all the essential elements of creating a drama: the script, the cast, the editing, the music, all work together harmoniously to create a fun story that is very grounded in real life but yet keeps it wholesome. In truth, the very premise itself is already dramatic enough: the girl is 7 years older than the guy. That's it. That's all the drama anyone can handle, and so this show doesn't try to create more artificial conflict. All the characters are thoughtfully written, and even the side characters are essential to the main storyline. I generally dislike the habit Cdramas tend to have of having secondary characters and romances that generally have absolutely nothing to do with the main couple, but in this show, every side character has a role that is integral to the main plot, and so their fate and how they entwine together are therefore very relevant. The comedic timing in this show is on point; not only do characters deliver their punchlines impeccably, but the director knows exactly which angles, which shots, and which background music will deliver the jokes to the greatest effect. I was crying from laughter throughout many episodes and sometimes couldn't even sleep because I was giggling too much over a particular gag. Flashback scenes are hilarious and also tie into the present timeline's themes, with childhood quirks setting up jokes later in the episode, and even later in the series. Most of all, this show is very self-aware; the characters point things out almost as soon as I think them in my head, including things that someone didn't do but should have done, and what this typically signifies. A lot of usual stereotypes get turned on their heads; many characters that would normally be antagonists in other stories are thoughtful allies in this one; comic relief characters are essential heroes that display appropriate gravitas and dignity when the situation warrants, and even the one flat antagonist that I believe other reviewers have referred to has the interesting symbolic role of representing the often superficial public opinion, so her lack of depth is actually appropriate for what she is meant to portray. This show is made of top quality ingredients that are cooked together in a way that both complement and elevate all the individual components, leading to a truly enjoyable experience. I couldn't put the series down and ended up finishing this show two days. An absolute must watch!