Even after getting married, Natsumi Mamiya continues to work as an airport employee. Feeling a misunderstanding with her husband over the gap in their work, she decided to appear in an adult video to relieve stress. Contrary to her calm personality, she squirts during sex for the first time in a long time, and from there she becomes more and more daring! Her secret desire to be tied up is fulfilled, and her masochistic nature is awakened.