Rance - Old Continuity -

From the introduction: Long ago, a whale-god named Ludo-Rathowm decided that he was bored and created ‘The Continent’ to entertain himself, after that he made the Gods and they started creating various races. With the objective of making a world engulfed in chaos to amuse the whale, the gods gave birth to various monsters, systems and finally, after trial and error, the Planner Scenario.