A Time to Screw

Setsuya was set adrift in time when an impostor took over his house and turned his maids into lust-filled nymphos for his own satisfaction. Now, only devoted maid Kasumi, using the special bell the real Setsuya gave her, can track down the rightful master of the house and bring him back, but he'll have to face the impostor...who's been fucking his favorite maid, Rika! The maids don't understand why every time the clock strikes thirteen their pussies get wet and they're desperate for cock, but they'll do whatever it takes to get Setsuya and Kasumi back. Affected by the same strange all-powerful horniness, can Setsuya defeat the impostor and regain control of his house for good?