I went into this story a little wary because of the comments, but the story is actually pretty okay? They didn't grow up together, they didnt live together until they were like 16-17 and they were no contact for 5 years. Their step brothers in title only because their parents are now married. Sure them having a little brother complicates it for them a bit but the story is actually cute. Curious how the Hyung is going to add to the conflic though, he seems no bueno.
This is actually kind of a sloe marriage proposal for a lesbian tbh. ╮( ̄▽ ̄)╭