Three years had passed since our marriage, and life had become comfortable. I thought we might have entered a good kind of stagnant period. Then, one day, Yuki was invited by a friend to an English conversation class and said she wanted to go. Thinking that it must be tough for her to stay home alone all day, I casually agreed. However, when she showed me photos from the English conversation class, I saw Roberto, the black instructor, with his arm around Yuki's shoulder, touching her intimately, and Yuki didn't seem to mind at all…
