No
I'm so confused omg
If you’re refering to "hyung", often times people in Korea call older men "hyung" or "oppa" and it does mean older brother but they also address strangers that way, so they’re not literally brothers
Oh, that makes sense, but how does the hyung guy know so much about him??
Because they grew up together, his hyung was friends with his big sister growing up
???? Are they brothers