The newly appointed teacher, An Nomiya, was in love with Koizumi, who worked at the same school, and had promised to get married. One day, while working late at night, she was given an aphrodisiac by Ooki, a perverted otaku principal whom she hated, and taken to a hotel, where the whole thing was video recorded and she was blackmailed... Falling into darkness and betraying her fiancé with the perverted principal's insidious urethral torture! The fate of a female teacher who was made to have a leaky premature ejaculation constitution and completely fell for her boss's dick in front of her fiancé...