She is someone who is often called "cold-natured," wandering the streets of Tokyo day after day. As this summer ends and the weather begins to cool, she started saying, "Maybe I should buy a cardigan to wear over my clothes." From those words, one can clearly picture her bundled up in layers far too heavy for the season. Her name is Ena—a slightly unusual name—and she mentioned that someone might remember her. Through interviews, we came to understand her story, learning of an unexpectedly profound event deeply etched into her life. Born in central Nagano, she grew up in a modest household with her father, mother, younger brother, and herself. Her father ran a small company from home, and her mother assisted him. They weren't particularly wealthy, living on an average income. But during her middle school years, her family's fate began to shift dramatically. As her father's business started to succeed, his behavior changed—he became increasingly indulgent in pleasures. Though her mother had always sympathized with him, thinking, "He's worked so hard," she finally reached her breaking point when she discovered his affair. She demanded a divorce, and a custody battle ensued over Ena and her brother. Wanting an heir, her father took the brother, while Ena stayed with her mother. However, her mother stubbornly refused alimony or compensation and left with nothing. Ena's life changed overnight. It became difficult for her mother to work and raise her at the same time. Shelter, clothing, food—everything became impoverished. Still, grateful for her mother's efforts, Ena endured. The harsh winter cold of Nagano became her first real experience of "coldness." The days of drinking warm milk tea with family in cozy comfort were gone. Waiting in a drafty tenement for her mother to return from late-night work, she shivered under thin blankets in front of a weak heater. It was then she truly understood what "cold" meant—not just in temperature, but in her heart. It was the moment she realized warmth equaled happiness. Since then, her obsession with "warmth" has only deepened, and she continues wandering Tokyo's streets, still longing to one day find her own personal warmth.