I marathoned this one over a few days.
This drama was cute. It's not one that I'll rave over, but it was short and fun to watch.

The cast mostly contains people who are new to acting, so they tended to over-act. But I was impressed by the leads, they had good chemistry and even though they were an unlikely couple, the lead actors made their love completely believable. They were shaky on the sweet scenes, but did a decent job.

The plot was simplistic, with just enough originality to spice the drama up a bit. The modern girl stuck in the past has definitely been done before, but modern girl trapped in another girl's body whose spirit keeps switching out with hers is definitely different. The solutions to problems were superficial but adequate.

Honestly, the best thing about this drama (besides the leads) was the music. The use of modern music in a historical drama made for an interesting contradiction that kept us in the female lead's head.

Overall, nothing amazing. "The Eternal Love" is a cute drama that you skip through on a weekend if you want some fun romance that's not too taxing on your emotions. I might rewatch the parts with the leads, but probably won't invest in the entire drama. I'm looking forward to what they do with season 2, though.