After receiving a job offer from her department chief during an interview, married woman Aoi Tejima heads home trembling with joy. Upon arriving, she tells her husband she'll start working tomorrow, and the couple celebrate together. On her first morning at the office, Aoi finds herself surrounded by male coworkers but diligently focuses on her duties. Right from day one, she's forced into sudden mandatory overtime. Finally finishing her work, she changes clothes in the locker room when she suddenly gets caught up in an unexpected incident!