The mysterious cube that transforms a woman's mind into lustful depravity. Once consumed by its power, Keiko quickly falls into sex addiction. Bound against her will, her private parts are intensely stimulated by a super vibrator. Overwhelming pleasure, like a wild beast raging inside her, takes complete control. Roaming endlessly in search of men, Keiko's crazed, intoxicating appearance becomes irresistibly captivating—someone you'd desire to see just once.