Three years ago, Yuu Kawakami lost her husband, with whom she shared a master and flesh slave relationship. The memories of him guiding her into a new world continue to ignite intense heat within her body. Unable to restrain herself any longer, Yuu summons men and forces them into strict training sessions. Using her late husband's cherished torture devices, she is intensely punished over and over, reaching explosive orgasms that drench the surroundings with powerful squirts. Holding her memories close, she passionately indulges in wild sex with multiple men, fully savoring every moment of pleasure.