Yes, my eyes also saw the protag as 'dense', but his 'dense' are not nonsense. And he isn't 'useless' either.
"Really, unlike other 'dense' protag who live a 'normal' life, and basically knows what 'love' is."
But then again, I myself, also was 'dense' during my younger days. I only realized it when she, who always by my side got taken by another man.
Yes, I am one of the real world ntr victim.