Office lady Miwa. She handles her work diligently and is admired by both superiors and juniors alike, but she has an unexpected side. When left alone in the office after overtime, she secretly enjoys herself with a vibrator hidden beneath her desk. A new male employee accidentally catches her in the act. Unable to hide his shock, he's met with Miwa's calm and seductive advances, leading to an intimate, adult training session late at night in the office. A forbidden glimpse into the hidden daily life of a popular office worker.