I'm going to keep this review short and cut to the chase. L.U.C.A. is a train wreck. It's a fairly interesting and good idea that was poorly executed on every level except acting. The forced relationship between 2 unlikable characters was befuddling and unnecessary. What makes sci-fi work is that there is some believability about it. L.U.C.A. never makes you believe nor does it make you willing to go along a journey with it. It's more like being kidnapped by Jigsaw.

If it wasn't for my love of those scene stealing Kims (Sang Ho and Sung Oh), I would have dropped it after episode 1 or 2. I have no love for Kim Rae Won, but he did his best with this jacked up story. Honestly, I think Lee Da Hee should stay on the variety circuit. The music was eh. The love theme was overused and annoying. I grew tired of hearing it. Re-watch is in the negative. I will never watch this again.

Overall, L.U.C.A. is poorly written, edited, and directed. It's a complete waste of time and energy. If you're watching, drop it. If you haven't started, don't.