Due to an attractive cast and some background research on the story it was based off of (Les Liaisons Dangereuses), "The Great Seducer" started out very intriguing but ultimately ended like many other Korean dramas.

Is it worth getting into? Nah.
Did I enjoy watching it? Somewhat.

Below is what led to my disappointment as well as what kept me watching until the last episode:

Story: The first few episodes oozed mystery, drama, and sex appeal, lead me to think that this was gonna be a heavy drama. I was excited to be watching something different from the usual light-hearted, cookie cutter "romance" dramas. However, the story line and weight of the issues/conflicts eventually trickled into the usual flat, stereotypical plot lines many K-drama viewer would be used to.

I really think the plot/director/screenplay is what ruined this drama. It seemed to attempt to build viewers up to some climax, but there was consistently no big shocker moment nor anything that glued together the pieces the previous episodes had laid out (just a heads up if you plan on watching and keep on expecting "the moment".)

The actors and actresses did their best with the script and characters they were given, but they're ultimately left powerless if the story itself can't come together.

Actors/Actresses (4):
1) Woo Do-Hwan: A new addition to my list of great actors that can carry a drama even if it was in tatters. He was so natural
2) Joy: She's definitely not bad, and she's improved a lot since "The Liar and His Lover," but there were moments her acting was just making me skip parts of the drama.
3) Moon Gayoung: She's a good actress, and portrayed the damaged mean girl very well. I liked her till the end and was only annoyed at parts where they dragged on her scenes, but again, that's due to the directing and story itself.
4) Kim Minjae: HONESTLY, MY FAVORITE. I'd last seen him in Romantic Doctor Teacher Kim (2016), and he seemed very young back then as well as didn't have the opportunity to showcase his acting chops due to his role. He wasn't the main character in any way, but whenever he showed up on screen, he made his scene count. His acting felt seamless for this role.

Overall, not too many regrets watching this drama, because I wanted to see how the actors and actresses delivered until the very end, and I'm glad I discovered Woo Do-Hwan as well as got a second look at Kim Minjae.

I would have told my future self to not waste time watching this drama though. If you decide to watch it, you may enjoy it for the first few episodes and eventually reach the plateau/disappointment I was talking about.