Naho and Jun joined the company at the same time and have been working hard together for nearly 20 years. Naho has been working hard and steadily building her career, while Jun is married and doing well in his private life. They had never thought of each other as a man and a woman, but when Jun says, "Actually, I'm divorced...", they start to think of each other. Furthermore, they end up sharing a room on a business trip and spending the night in a closed room...