Aya Nanjo, A Masturbation-crazed Female Boss Who Repeatedly Climaxes With Lesbianism After Her Body, Which Has Become Sensitive Due To Her Abstinence From Sharing A Room, Has Her Masturbation Routine Broken By A Devilish Junior Colleague Who Missed The Last Train.

Aya, a career woman working at a major company, is well-liked in the office and always smiles, so others think she is a calm person. But in reality, she has such an immense sex drive that she cannot maintain her sanity without masturbating. One day, her junior colleague Himari, who missed the last train, suddenly comes to her place and is virtually forced to stay over... Aya, who had been holding back her masturbation due to the sudden enforced abstinence from sharing a room without notice, gradually loses her reason and begins to masturbate using her junior's personal items...