Little is known about "Fate of Ages", a new anime-style game announced about a month ago. Boasting a wide range of options for customization, and taking place across six different ages, the game is set to be a real single player treat - just the sort of thing you want to lock yourself in your room and play solid for a month. I'm sure that will help you get a girlfriend.
Bluesmoke has a great article on this up and coming game, with screenshots and an interview. The game has many similarities to such titles as Final Fantasy and Diablo 2.