Hな除霊パズル！　いきたい　いかせて霊媒師　かなたのお願い

Kyousuke is a private detective and (unofficially and reluctantly) an exorcist of ghosts, but since encountering Kanata, a long lost childhood friend, the number of ghost hauntings around him grows to dangerous levels.
What's happening? And why all these paranormal events also have erotic overtones?