A middle-aged man and woman drowning affair that begins in the bathroom - a wet, secret room

Ayaka lives with her husband Takayuki, who works in architecture. My nervous husband is always on the verge of energy, and I live a life that keeps me free from home. Of all this, the only thing I could feel at ease was when my husband took a leisurely bath while he was working... One day, when he was working on the site, he was concerned about his mud-dad boss Kanda, and Takayuki advises him to use the bath at his nearby home. Even while taking a bath, Kanda runs into a scene where Ayaka is masturbating to fill her loneliness, not being able to deal with by her husband...