The plot actually started coz the seme was aware who uke was and felt pity for him before the main plot started
their 1st encounter could have been the car accident and nothing would have change.. he would still feel pity for him
But then he wouldn't have asked him to get the USB
I think you should read the chapters from first seasn season
The seme didn't need to go through him, he could go directly to his father and coincidentally meet him there again
The way I see it, there are a few things that justify the trope. There was a reason he didn't go for his father. Yeon-oh was in the unique position of being protected by his fame from Jaehyuk's grandfather's wrath (he didn't account for Yh's father going to his grandfather and messing up). Because they met as kids, Jaehyuk had that kinda sympathy in the middle of his narrow-minded focus on his mother to not place Yeon-oh in further danger. If he never knew him, I don't think he would care or would have recognised him on the road tbh. So he changed his approach to revenge based on them knowing each other. He didn't go to his father directly also BC he viewed him with suspicion which is what causes Yeon-oh to also doubt his father.
It also just makes sense cause how could his father have been a driver for years and be a witness to such an intimate and personal event as a family argument and then a murder, and they never met. It was so minimal that Yeon-oh doesn't remember it, but it happened bc that man was part of Jaehyuk's everyday life so no wonder he saw his kids too.
There's a lot of plot points you could change but I don't see how that's relevant to a critique of someone else's work where they have different goals than you like?? The author could've also made Yeon-oh already famous, could've made his father come forward to the police earlier in life, could've done a lot of other wildly different things but that wasn't the story they wanted to tell. I'm sorry you don't like it but saying it wasn't justified when it was the basis of the plot quite early on isn't a critique that I agree with.
Really dissatisfied with how the story ended up... Knowing each other in their childhood serve nothing to the story and then the way the antagonist in the story was defeated is very anticlimactic.. seme also point out that the uke's father look nothing like him which might make another story arc.