Kazuki, a wealthy young man, yet struck by a terminal illness, lives in his big mansion with numerous female servants. Among them is Nanase, who fell in love with Kazuki. She is trying her best to make him understand the joys of life. However, ever since Kazuki's sister noticed her feelings, jealousy drives her to discipline Nanase whenever possible in her "torture chamber"...  

Mizuho, Noriko and Yuri set out on an exciting beauty spa vacation that Yuri won as a prize, but you are totally not aware the vicious psychological trap actually going to enter. Now, they shall be dragged into an alternative world stuffed with their traumatic memories and lustful, sinful dreams. Will sanity ever go back to their lives, or can they be destroyed by their particular memories?