"Rescuing people for questionable purposes" is the subtitle of Mozzoloh, so it is no wonder that you would assume that it is a porn game. And, yes, in fact, it is a porn game. To be more accurate, it is a porn RPG. This implies that you will get to battle enemies, purchase equipment, level up, and all other RPGish things that you can think of. As it pans out, you are the hero who has to save people from different dimensions from the monster world. And, you can also fuck the people you save. Couple this premise with an excellent story and a tight battle system and you have a real gem on your hands.