Over 40 different succubi!
A boy falls down a well and ends up in a whole new world --
and before him sprawled a huge castle full of busty succubi!
By borrowing the power of Louise, a girl that suddenly appeared
in his hour of need, he hopes to find a way back home... however...
* Though there are connections to previous works, there's no need to play them before this.
* Demo version save data can be transferred to the commercial version.