Surprisingly atrocious! To start, reading the synopsis would give you all the spoilers you need as it will play out exactly as suggested. Given the supposed 'moral' dilemma, the drama resulted to shifting genres at around episode 9 to diverge the attention from the characters' relationships when it reached a pivotal moment, which is why we ended up with a corporate corruption plot. This was the main reason why the plot crumbled under its own weight, because the writers couldn't follow through with what they created. Well, it was problematic from the beginning, there was simply little to no room to navigate such a set up for a story where the FL fell in love with her brother-in-law immediately after her sister's death. The plot wasn't particularly unique but other ones at least had a reasonable justification by utilizing a time-skip or concealed identity. All of that doesn't come close to the tone deaf ending where the entire cast were casually hanging out at the bar as the credit rolled.