kokoro hates her mother's new husband for his lewd glances. one day, her mother goes home for a visit, leaving kokoro alone with her stepfather for three days. on the first night, kokoro falls into her stepfather's trap, and her body, heated by an aphrodisiac, is raped all night. she can't even escape to school, and her well-developed breasts are groped while she cums repeatedly with non-stop fucking. she becomes obsessed with her stepfather's cock, eagerly taking his cum and completely falling for him. "i want more of your cock..."