Re: [暗黒郷物語]トビ姫 -Inter Breed-
Trick (In Elona+ anyways) is to run Poppy Cave over and over until you get a bunch of spell books and translatable books. If you go about usual gameplay, it'll be a looooong time before you have enough translated books to join the Mage's Guild. After you join, spell skilling and such is much easier. My first Mage was a pain, the one I made when I came back to the game was much easier (Well, it helps that they increased spell stocks and such too).
More on topic, I wish more H games took a page from Elona. I love the more realistic approach to level/skilling up with the potential system and such. It isn't "Beat monsters over the head with a club, use exp to level intelligence and magically become a powerful mage", like most rpgs. That disconnect between your stats and what you do to earn them usually bothers me.
If Elona had hentai/sprite sex, it would be amazing. The only long term/massive hentai rpg project I can think of is Violated Heroine (Which is also amazing).