
I absolutely agree. I like most people read romance manhwa or books just to see the couples lovey dovey moments. But without any backstory to the characters, the story falls flat . This back story is not just Kang Minncheol"s backstory, but also Hae Soo's backstory. If I were in her shoes , I don't think I could never trust another soul no matter what. But she is was braver then me.

I think it serves as a frame of reference to see how much Mincheol has transformed into such an asshole.
It "humanizes"? him. His backstory doesn't serve to justify his actions, just shows the circumstances that led to those actions. Overall I think it makes the story alot more realistic, seeing as how you can see a person in real life making the decisions that Mincheol also makes which makes it unsettling to realize.
"We need more complex characters!"
Yall cant even handle kang mincheol. The point of these backstories is not to make you like him, but to flesh out haesu and micheol's character. Stop complaining, if you hate it so much, just drop it.