Yuri and her husband, Daijiro, married three years ago despite their age difference. A year ago, upon turning 60, Daijiro stepped down as company president to become chairman. Now, he works from morning until noon and spends every afternoon with Yuri. However, his body suddenly changed. At the same time he left the presidency, he developed ED, and Daijiro agonized over his inability to satisfy Yuri. One day, Daijiro came up with the idea of letting his wife be taken by Ishida, her computer instructor. What is the truth behind the relationship between those two...?