@starred1 in his lil bro's accident i think it's kinda his own fault and it's not only Dowun that abandoned him but also Lyon, but i agree Dowun is not a good brother so yea it's logical the lil bro will hold grudge for him, probably even scheming against him.
@Winterspring oh, ofc no... not always, yeah what you said is on point and seems like it'll happen to this manhwa as well, which will be boring for my taste. Ya, sadly about 2nd FML i also can't find someone interesting, the 2nd ML tends to be more variative than the FML one.
@Redice Baek served as a foil to Dowun and that makes him his own, interesting character. Being a good guy itself is a characteristic. Boring is just your own taste, personally i never see someone like Baek is boring, what makes Dowun stands out because we, as readers don't have his POV, that's all. And it's not like Baek will save everyone, one reason why Baek saved Lyon because he empathize with her for having same situation as he did. I never describe Dowun as a bad guy, he never was, he's just a cold, ruthless and refuse to give you affection as he means business, which is why as love interest i'd prefer Baek more.