The CEO's Secretary's damp pantyhose

Sugiura, the secretary department chief, is instructed to monitor the vice president who is suspected of insider trading, nominated his subordinate Eri as his partner. Sugiura gets the chance to spend the day and night with Eri, who had been targeting her for a while using her work as an excuse, and attacks Eri in the apartment she is staked out and threatens to use rape footage as a joke to manipulate Eri at her will...