Mirai's boss, Urushibara, sends her husband on his final business trip before he opens his own business. Urushibara, who has a secret crush on Mirai, breaks into her house, restrains her, and rapes her mercilessly. Mirai is violated endlessly while her husband is away on a business trip, and gradually becomes addicted to Urushibara's intense sex. When her husband comes home and takes a bath, she becomes excited and clamoring for some risky sex.