i cant tell if they’re naive, dumb, or oblivious tbh

it’s annoying how the mc in a lot of manhwa (take this one as an example) believe they can’t change the original storyline. if you’re interacting with major characters the original storyline is bound to change in some way, shape, or form. i thought this was common sense, but apparently for the sake of story and character development it just isn’t within the bounds of common sense... sighhh