"I devised a plan to find out the secrets of Kana..." Having been busy at work recently, I wanted to do something for my wife, so I suggested that she relax by herself at a newly opened city hotel nearby. Kana was happy, and sent me a photo when they arrived. However, at some point, she stopped sending me photos unless I asked her to. When the photo finally arrived, a man's watch was visible in the photo... What is this? Who is it? Along with the "despair," a different emotion began to well up inside me.