They will become second couple later evidently so... ╮(￣▽￣)╭
Wait really? Was that in the raws?
Yup they reincarnate and then become lovers (there were panels of them kissing in modern clothes and in present south korea)and even after he(younger bro) died I think they talk and he comes to know that big bro like him but not like he falls for him then but it's just angst nd big bro feeling guilt and wanting to punish himself while the younger bro also hates him and wants the same?
This is all my deduction from watching the panels cause I don understand Korean.
What 2nd couple????? They're not a fucking couple wtfff just call them brothers or smth because that's what they really are