Nao is married to Tetsuya, the director of an IT company. The company was established and developed by people who knew each other from university. With a investment of hundreds of millions from venture capitalist Kanno, Tetsuya quickly became wealthy. However, recently Tetsuya has been using the company's money for personal purposes, and failed investments have pushed the company to the brink of bankruptcy. Higashio, who has known Tetsuya and Nao for ten years, had feelings for Nao when she was a model. But due to insecurity about his age and status, Higashio stepped back so that Tetsuya could propose to and marry Nao. As the company becomes unstable and Tetsuya's position is threatened, Higashio approached Nao, slowly making her dependent on him, unable to leave him. Higashio also gained the trust of everyone in the company, quickly taking over as director. And Higashio did not forget about Tetsuya, he messaged Tetsuya to come to the office, witnessing his beloved wife serving someone else in the very room where he lost everything!