I was first very excited about watching this drama because the ratings were really good and it seemed to have a unique plot -at least in dramas, I've seen similar plots in novels- but towards the the end of the dramas the overall ratings on MDL had dropped and i was wondering why because I still hadn't started watching the drama at that time... but It's probably due to the fact that the episodes were getting kinda repetitive with Dan Oh seeing the storyboard for a future event in the manhwa and then trying desperately along with Haru to change it only to mess things up in another way, and then the gaps between these scenes are filled with Haru and Dan Oh being all lovey-dovey, this particular thing didn't bother me but I see why it could bother others.
There also a lot of plot holes that you will notice throughout the drama and things that don't make sense that just ....happen.. for the sake of the plot, no matter how hard I tried to understand the rules of their manhwa world i just couldn't really. The whole plot is really interesting but I wished it had less loop holes. I wouldn't watch the whole drama again, but only rewatch the scenes between the the two leads and also Do Hwa's scenes after he becomes self-aware because his reactions amuse me.

buuuut the reason I ignored all that and gave this drama a high rating was because i found the relationship between the leads absolutely adorable and fluffy and Haru's character is really soft and just makes me melt,
so if you're looking for some light-heart fluffy drama to waste your time on this might be your fix