In my opinion,yes. I loved the fact that they had a happy ending but the first half of episode 16 could've been better,it was very cliche. I loved the entire series except that episode.

Eun Seong pops up undead - he's a zombie. He takes Hae In - now she's a zombie too! Hyun Woo chases them up the Korean Peninsula, transgressing the DMZ into NK, ...hijinks ensue... eventually he kills them both, cries, and a day later himself. Wakes up in a lavender field in the afterlife.