the only thing this drama had going for itself was good visuals.
writing is actual garbage. super convoluted and complicated to understand who is who in who's body later in the drama.
why would you spend 11 episodes explaining what is going on and how the time traveling works (poorly i must say) just to completely disregard it at the end of the last episode ??? The writers wanted their cakes and eat it too. They wanted the ending to be super sad and dark and depressing but then last minute boom here everyone your happy ending so that you will love this show.
would've gave this a 7 if they ended the drama after the bad guy broke the cassette player. At least the ending would've been super impactful and would make up for the average writing.
no chemistry between the leads. long boring draggy episodes. plot holes everywhere.no jaw.

they put a gay couple in there for 3 minutes before killing them off. and then using Koo Yeon Jun's body and we dont know if he is still alive in his head.

also just realised the people at the end are not the people that we got to know. they're different people with different memories so why should i care if they get together.

... yeah it was bad.

1 star because the ending just pissed me off and made me waste my time.
That man does not have any kind of jaw definition stop lighting him from the bottom that man need some overhead lighting.