Is there manhwa for his younger brother ? And if have what’s the name pls tysmmmm

Just looked it up

I think the OG story is “Rabbit Hole”?
Apparently this is a spin off of that story of the younger brother? Not sure tho

Haven’t checked yet

yeah, just not sure whether “spin off” is the right way to call it since technically rabbit hole manhwa was first. but i dont know about the novels