HBAD-433 On a hot, humid summer day, a married woman experiences a thrill unlike anything she has felt in her married life, leaving her body tingling as if struck by electricity. Without telling her husband, Mika Aikawa offers herself to men and accepts repeated encounters.

Mika and her husband move from the countryside for work. After her husband leaves first to handle a contract, the neighborhood association head and a young local man, who had long been eyeing Mika, come to her house and try to pressure her, but she turns them away. Unable to give up on Mika, the men sneak into the house at night after she has fallen asleep and force themselves on her.