I never read the manga before watching this, so that said, it was weird for me lol. I did enjoy watching it. Here's the reasons.

1. The storyline was certainly unique even if the setting and initial set up of character dynamics was not. As the story played out it was a strange but original development.

2. The acting was good. It was believable. Believable acting just makes shiws easier to watch.

3. The chemistry was there. Good chemistry makes me root for the main couple no matter what.

Now, reasons why it was weird.

1. I dont mind problematic characters because they're realistic. But at times the dynamic was unsettling for me. I felt iffy about wanting to see a happy ending here.