You are a student piled on debt when a beautiful succubus appear offering a chance for you to sexfight women from different worlds and you are even getting paid. And here is where your journey starts, adventure and sex with many kinds of monster girls awaits you!
The game is text-based with 2d cgs of the characters. The base of the game are the sexfights were you will fight against the girls trying to undress them and make them cum before you. You will also be able to visit them in their worlds were you can find out more about them and do all sort of activities to improve yourself, get closer to the girl and sometimes eventually make a difference in their worlds. But don't feel too safe there is more to those games then it seems and it is up to you to find out, your own life may depend on it.