Honestly , it's a pretty good drama . I'd recommend you guys to watch it. Although there are some things which did not make sense. Ji Eun Tak.
It didn't make any sense that the grim reaper and his lover(Kim Sun) became a different person in their next life . Cuz the pretty girl who worked with Grim reaper( Wang Yeo) didn't change. She had the same face. ( she's the one who served the medicine).
Annndd ,how is it that Ji-Eun-Tak knew she would forget about the goblin (Kim Shin) and wrote something in her notebook to make her remember?!
Also , when Ji-Eun-Tak blowed the candle on her 29th birthday , Kim Shin(Goblin) was summoned . But what about the birthdays she had before , didn't she blow the candles then? Why did it take 9 years for Kim Shin to be summoned? I don't get it.