So in the story they say that the MC and the ML are both first years while the Prince is a fourth year so if we're basing this off of an American system both of the main characters are 14 to 15 and the prince is 17 to 18, that's a legal adult
So in the story they say that the MC and the ML are both first years while the Prince is a fourth year so if we're basing this off of an American system both of the main characters are 14 to 15 and the prince is 17 to 18, that's a legal adult