BF-691 While my wife was visiting her parents, I was going crazy for my students 24/7. (Kizaki Nana - Kisaki Nana)

My wife, whom I had argued with, went back to her parents' house. Just then, my student Nana arrived. Although I didn't make him say, "From today onwards, I am your wife," he essentially took my place... but I never imagined he would have sex with me...