Responses
Forget this fuck the lil bro I saw spoiler n ya would've beaten him up
I may be wrong, might be jumping to conclusions, but the way the Lil bro was talking, I think it was his sister in the other world. And I think Seungjae is his "sunbae" he liked in the other world. They have matching dimples and piercings.
Now why would you treat the younger brother like that if we go by mcs logic he thinks he isekaied so he's tryna leave the novel so making it awkward with the og body's family is worse for og body n Everyone too n mc already said he feels guilty so why not just act nice