the kid that baekhees dad was abusing in his memory was ilwoo, which (i think) confirms that ilwoo went to gicheon to kill baekhees dad. also that they met as kids.
The child shown being beaten by MC’s dad is Yang Ilwoo, hence the scar on his arm, the child watching was our MC. (Sorry if this is a bad explanation lol)
Remember the very first chapter? You can go back to the first chapter and you'll see there is a flashback of Baekhee dad abusing a kid. That kid is Ilwoo and not Baekhee. The author deliberately drew their pupil white so that we all assume that it was a memory of Baekhee being abuse but it was a point of view where Baekhee was hiding in the wardrobe witnessing his father hurting Il-woo. The first chapter showed Baekhee having that flashbacks and he startled awake.
i'm so lost... what was the plot twist? what did the scar mean? someone pls explain