My illicit affair with my son's friend, Kitayama-kun, began five years ago. When my husband's cheating was discovered and I was devastated, Kitayama-kun stayed by my side and comforted me. Then, with a serious look in his eyes, he confessed, "You want to get revenge for the cheating, right? Would I be okay?" Despite the guilt, I wanted to respond to his feelings, so I crossed the line. For the next five years, we continued our secret trysts, hiding from my husband and son. However, everything changed when Kitayama-kun got a girlfriend...