The story was good but the execution was messy

Loved the whole theme and the story but it seemed all over the place and incomplete. Felt really messy, not organised.
They tried to tell 3 different stories which I think was the main problem. That many stories in a movie is too much. From these different stories only one stood out the most, Suzy and Bo-gum had a great chemistry and great acting. They carried the whole movie tbh. If they had just focused on their story I think it would have been much better.