I lost my father when I was young, and my mother raised me alone. However, one day, when I returned home, I found shoes belonging to a man I didn't know lined up at my front door. ``My mother remarries a man she doesn't know. ', which should have been something to celebrate, but at that moment I felt a feeling of jealousy. My mother becomes someone's wife. A gentle smile and a warm chest that hugs me will be taken away by another man. When I think about that, my rationality somehow breaks down.