My Sassy Girl! I tried to describe it to someone a few months ago, and this is what I wrote:

This was the first South Korean film I’ve ever seen 15 years ago and it opened up a whole new world to me. Not only the exciting world of South Korean cinema, it also opened my mind to what films are allowed to do. My Sassy Girl is a romcom, but it’s also a drama, includes action movie parodies, becomes a hostage thriller for ten minutes, plays with chronology and cinematography, and even might have a stealth sci-fi time travel plot, and also features a fun „find the quintuplets“-game. I wasn’t aware that mixing tones and genres like this does not turn your movie into an incomprehensible mess, but can add to its charms. It’s weird to call a film charming when it’s about a relationship I would call abusive in real life, but somehow it manages to heighten the comedic bits in a way that I can’t take the abuse heaped upon poor Gyen-woo by the girl seriously, and yet when we get to the explanation for her behavior it breaks my heart and in the end I root for them as a couple. It's wild and messy, sometimes even mean, but most of all, it is likable. And that is what I love about it.