I don't know what I expected from the story but I'm a little sad because I thought it was 10 episodes of 50 minutes each, I thought we're getting 1 episode a week and didn't realize we were getting 2.
The story was simple, and predictable, not necessarily in bad way, it was just clear who were the bad guys and we only watched them get punished.

Acting and Camera though? OOF. Supreb. I loved the expressions Na Na & Roo Mi made every time they clashed. whether in the past or the current timeline.

Music. As for the soundtracks, most notable was Sunmi's Gotta Go, but the music they used in the ambience was alright too.

P.S: I hope this is a great kickstart for Hani's acting career.