Responses

There’s nothing for you to “fall for.” A backstory doesn’t mean you’re supposed to feel sorry for a character or forgive them in any way. Its purpose is to provide a narrative that helps readers understand how and why the character is the way they are in the present, to connect the dots between their past and their current actions and personality. It’s not there to persuade you to forgive them. I honestly don’t see why some of y'all take a backstory as the author’s attempt to excuse a red or black flag character, when really it’s just context to explain the roots of their behavior.
No amount of tragic backstory will make me forgive "Temu Sangwoo" (I love this name for him, credit to InternationlSuperSpy). He is still wrong for what he did to the MC.