Nanami has been living a happy newly-married life for almost a year since she married her co-worker.A new manager, Ono, will be assigned there due to a personnel change.Ono and Nanami had a relationship only once before marriage.Despite feeling that awkwardness, the two did their work indifferently without mentioning each other's past.One day, there is a mistake in Nanami's paperwork, so Ono and Nanami have to go to work on a holiday.Ono courts Nanami in an empty office.Nanami couldn't refuse strongly because of the inferiority that caused the trouble, and the two crossed the line again.