Am not a fan of the horror genre but still, I tried to watch this because I saw a clip of funny ghosts' interaction with humans. But I was highly disappointed the clip I saw was the only funny thing in the drama too. til the 11th episode, 70 percent of the screen time was about cooking food and catching ghosts which brought no development to the story. Also, It was so slow that I was tired to watch everything, so I skipped through it. Amnesia and murder mystery could have been written more strongly because it had created a good backstory.
If anyone wants to skip, then watch the drama from episode 12, it gains a high pace in uncovering the ghost mystery.

Acting by Kim So Hyun is just excellent. She is one adorable hungry spirit.
Ok Taecyeon was good but he was just average.

Music is not memorable

Rewatch is an absolute NO. I would rather watch that clip of ghost than watch this ghost and human cohabitation.

Afterthought
The cohabitation didn’t feel like happening between a ghost and a human, because she is demanding food, clothes, and studying, she feels like a teenager who is latching onto their guardian.