Why does he never understand anything? Nothing the nanocmachine is saying should be difficult to him, if it was like tech talk or something that doesn't exist in their world then I understand but all he's saying is basic elementary knowledge that anyone can guess by themselves even a caveman.
@Yww bruh he's not educated, it is normal and as someone who's not an english native speaker, the words the system uses does sounds like an advanced one, especially since this manhwas was originated in korean so u cant compare it much with english.
@sanjay stewart (SL33P3R) you dont even need to be educated bro just know the language and use personal experience to make sense of the sentence. i go into an advance science with barely any knowledge or understanding of any vocab they use but i can still try and connect the words that i do know and use real life situations to make sense of it.