If they're not brothers what are they ?Are they half brothers? Step brothers? Cousins? Maybe
I surmised they were friends with the same last name. Kang is a common Korean surname used in comics. I've met lots of people with my last name & absolutely zero relation (I chose my surname). It happens.
dont they say they are friends who happen to have the same last name?
If they're not brothers what are they ?Are they half brothers? Step brothers? Cousins? Maybe