beta
I only saw the first few chaps so the story goes like this, the MC(male) was reincarnated as a kid in this fantasy world then I think I'm not sure how it became like this but he became a skilled warrior then he be came a immortal then the king of that world (or the empire he reincarnated in idk) but one day some demons(or monsters) from other world attacks their place. I'm not sure about this part but the MC continues to fight the demons until how many years passed and all humans in that world died(but he didn't cause he's immortal) then suddenly humans from Korea came to help him (like they cam travel through dimensions and they kill those demons) but the MC already killed the last demon so those Koreans that came to help him took him and brought him back to Korea (before reincarnation the MC was Korean) and in Korea the MC discovers that Korea was attacked like few years after he was reincarnated, I only remember up until that part.