From from Renta!:
Even though Amu has good, deep sex on the days she's ovulating, she hasn't been blessed with the gift of a child. That's because her body holds a terrible curse that says she will never be able to have a child until 1000 men have had her! To have her beloved husband's child she is prepared to sleep with 1000 men, but what awaits her is screaming, sexy hell. Coming inside her with no protection, anytime, anywhere, anyone. This wife who wants so desperately to conceive exposes her voluptuous body to other men, who grope and squeeze her relentlessly.