Saeko, troubled by her good-for-nothing husband, had always put on a cheerful front to avoid worrying her mother and younger brother Shinji who lived nearby. But one day, after catching her husband in the act of cheating, she could no longer bear it and rushed to her brother's apartment. As she tried to talk through her tears, an enraged Shinji lashed out at his brother-in-law with furious condemnation, leading to a shocking conclusion. A complex, emotionally charged story where family collapse and sibling bonds intertwine.