It has been three years since I met my wife Kana at work, and we continue to enjoy a warm married life. She works as a researcher, deeply immersed in her studies alongside her mentor and supervisor, Professor Kuroda. Intelligent and kind-hearted, Kana has recently been acting strangely. When I couldn't reach her by phone, I went to her office—only to find her with the professor. The pain I felt as her husband in that moment still hasn't ended.