That's because you are comparing it to the original instead of trying to enjoy it from a different cultural perspective.…
It's not a copy-paste, it's a remake, but in a Japanese way which is completely different from Korean since they are different cultures. They even approach drama making in a different way, you can see it in the angles, lighting, characters' gestures.
You are expecting them to behave just like in the Korean original and that is impossible. They are doing this drama in their own way.
https://twitter.com/nisekoi_1221
You are expecting them to behave just like in the Korean original and that is impossible. They are doing this drama in their own way.