First things first the OST was amazing. I think that the OST is the reason I enjoyed this so much, it made me feel very nostalgic. The first third was my favourite. Her time as Yoon Juwon was a 10/10 for me. As for her time as Ban Jieum, I enjoyed that best when only Aegyeong knew about her past lives. Once Chowon found out and especially when Seoha found out it kind of felt like "what now?". When her first life started becoming more important I was interested but I think that it was too much. I think that there was too much going on so I wasn't able to connect to the characters, I felt like I didn't know who they were which version of them am I meant to connect with. I felt like I was being pulled in so many different directions that I wasn't able to empathize or connect with any of them apart from the young Seoha and Juwon timeline.
If I were to change something I wouldn't have included her first life. I also think it would've been better if only Aegyeong knew about Jieum's past lives.
I'm not mad that I watched this. I have been wanting to watch more dramas with Shin Hyesun after I saw her in Mr. Queen. I think she is an incredible actress. Plus seeing Cha Chung Hwa with Shin Hyesun again was really cute.
Overall I think this story had a lot of potential, and in the beginning it was great but it wasn't able to maintain that feeling for me.