I just love how Alberu (or well, tigeru) and Lee Soo Hyuk can easily accept whatever new mind blowing, world shattering news Cale/KRS tells them but they can't accept Cale/KRS not calling them hyung.
Cale: I am actually a thirty six year old man from a different world who occupied Cale Henituse's body like two years ago.
Alberu: ........ I'm still the hyung, alright?
Cale: I am not the Kim Rok Soo of your world. I am from a parallel world that's eighteen years ahead of this world and that's how I can tell what's going to happen in the near future. Thus I am also a lot older than you.
LSH: ........Was I your hyung in that world?
LSH: Since I was your hyung in that world and I am the hyung of Kim Rok Soo in this world, then who are you calling 'you' (casual), you punk!
1. Both Alberu and LSH have their priorities straight. It's Cale/KRS. He's their priority.
2. Cale can't break the news tactfully (and normally) to save his life.
3. Everybody has accepted that Cale/krs will never bring normal news. Something that seems normal (and not worth mentioning) to him is going to probably blow your mind to smithereens.
4. Cale loves having hyungs. He just keeps on collecting hyungs and noonas (and dads) like one would collect pokemons. Pokehyung
5. They are the most adorable set of brothers in this multiverse.