Generally, it was badly executed. The story was so drawn out I lost interest in after the 4th episode but just pushed myself till the end for everything to be revealed cos I wanted to see justice being served and bad people punished and thank god that happened. I'm just sorry I wasted a whole Saturday on this. I was skipping things like crazy from how unentertaining and repetitive it all was. There are so many repeats of past events it's incredibly annoying and unnecessary - like all the time I can't stress this enough. So many lousy "dramatic" moments that just drag on and on and on, dramatic music, slowed down camera work oh my god I just wanted it all to end.
Everything from the start is just full of plot holes and disregarding facts and the truth, trying to put emphasis on everything being the mother's fault (FL) 'cos she didn't close the front door and not on the man who ran over her child and admitted he left him on a playground to die and the judiciary system acting like all of that isn't important just made me really annoyed by the plot from the first episode. Just everyone acting as if that isn't important and no one saying anything about it made everything ridiculous to me. Seounyul (Eunwoo's character) wanting to harm the FL even though his father killed a child, didn't get him to a hospital and showed absolutely no sincere remorse is what made me mad watching the drama the whole time. I understand he wanted revenge, but he could literally see his father in court not even acting sad by what he did. As a child, if my father accidently harmed someone (moreover a child), I'd be disappointed if I didn't see him being devastated by what he did. These things sadly happen when people really unintentionally hurt someone, but there's a difference when they're absolutely heartbroken by what they did (even though it had been an accident) vs. when they act the way Seounyul's father acted.
I wish they developed the FL's character a bit better. At times, some things just felt so lacking, but I can let that go since she's a really good actress and is really just portraying a mother that lost her child.
Other than the plot, actors were all good. Some of the minor leads could've been better - Cha Eunwoo's childhood friend, her acting was lousy all the time. Suho's brother was meh okay I guess and at times Yuri (FL's adopted sister/manager) wasn't spectacular.
Cha Eunwoo did good. I think his acting is always like okay, not anything special, but he's good and I think he improved in the last two years especially. I just hate when directors put emphasis on his looks. Like all the scenes of him working as a mechanic and all that are just pointless and add nothing to the plot but to attract female viewers and his fans who just won't admit that those scenes really have no meaning. Like you're honestly telling me we need scenes where's his pushing tires, checking the oil and being very clumsy at it mind you, trying to repair some car as if he knows what's he's doing. It all just looked done so poorly and forced to show him being this 'hot attractive handy man'. I've seen many directors do that in dramas he stars in and even though it's maybe less here, I wish it didn't happen at all and that they just focus on the story, the characters' development and the actors. I'm not his fan, but I know he's expressed many times that he's burdened by his looks and would like people didn't always point it out - I've seen him and his group members on different variety shows and the hosts always focus on his looks which obviously makes not just his members uncomfortable, but makes him uncomfortable the most. It's a blessing, but a burden at the same time since the Korean society is so fixated on looks especially.