I don't know why writers don't come up with some crazy and unexpected twists and entertainment like 'Mr. and Mrs. Smith. All the movies feel the same to me, with easily predictable stories within 15-20 minutes into them. K-dramas often have the same story, with a rich CEO and a poor girl.
Instead, I would suggest watching I Want to Eat Your Pancreas, Your Name, Weathering with You, and 5 Centimeters Per Second.