During his student days, Masaru worked hard at a part-time job delivering newspapers to earn tuition money. His daily struggles were all for the sake of his single mother, Kyoko, reflecting a desperate fight for survival. One day, Kyoko discovers documents related to a scholarship application and immediately consults Masaru's homeroom teacher. However, overwhelmed by the demands of school and work, physically and mentally exhausted, Masaru begins to develop forbidden fantasies about his mother's figure.