Lost my father at a young age and have been living alone with my mother ever since. Yet one day, when I returned home, there were shoes at the entrance belonging to a man I didn't know... "My mother is remarrying with a man I don't know." In that moment, the emotion that welled up within me was jealousy. Her gentle smile, her warm embrace—all taken away by another man!! My mother, whom I thought belonged only to me!! And that overwhelming feeling of jealousy gradually began to disrupt my rationality.