apparently granpa and granma also forgots to teach him some common sense..
at this stage he gonna bu used as pawns for the captain..
heck they already discussing this in this chapter
So lemme get this straight.. so there is the usual mapping skill that nearly everyone has and considered useless but mc has a "full" mapping skill that only this "god dungeon" allows to be mapped?
Something like a higher level mapping ability that can only be used in higher level area?