This is my take on lovely runner so you don’t have to agree with it.
Firstly, I couldn’t help but notice alot of similarities in Sol and bora from 20th century girl in the beginning episodes. I feel like the writer wanted to make sol’s character like Bora but failed to do so. Bora was undeniably adorable and natural.. Unfortunately Sol didn’t make us feel that way. She was annoying to say the least.
Apart from that we discover in the 3rd episode that Sun Jae is the one who fell for Sol first and same happened in the 20th century girl as Woon-ho fell for bora first. Then the confusion starts that bora likes his friend same as Sun Jae confuses Sol is in love with Kim tae sung( not his fault thou as Sol was sending mixed signals). And the confusion continues up till the middle of the show.i feel just as we loved woon-ho from 20th century girl and wanted a different ending for him, the writer also wanted the same hence gave similar story but with time travel twist.(LOL)

I absolutely love sun jae and I was rooting for him but sol ughh. I don’t know why but she annoyed me throughout the show. I don’t understand what was she trying to do as her actions were abrupt and not thought through. Poor sunaje suffered much for her.
Anyhow i might not rewatch the show as story was lacking depth.. Sol’s time travel and sunjae’s death keep repeating in a never ending loop. It was bizarre towards the end.