Married, with children, and fulfilling careers...on the surface, both their personal and professional lives seem to be going smoothly in their 40s. But in reality, they're 'sexless.' These middle-aged men decide, "Life is going downhill anyway, so if I'm going to cheat, I might as well try it with an AV actress!" They take on the challenge of losing their virginity for the second time in their lives! This time, their partners are the fair-skinned, beautifully curvaceous Tenma Yui, the charming smile, the beautiful breasts, and the beautiful buttocks of Kashiwagi Konatsu, and the fair-skinned...